From 3c4629c7d7b295812152357564bafa87662a74cc Mon Sep 17 00:00:00 2001 From: patacongo Date: Thu, 13 Dec 2012 21:49:11 +0000 Subject: Finsh Z80181/182 register bit definition git-svn-id: svn://svn.code.sf.net/p/nuttx/code/trunk@5435 42af7a65-404d-4744-a932-0658087f49c3 --- nuttx/arch/z80/src/z180/z180_iomap.h | 471 +++++++++++++++++++++++++++++------ 1 file changed, 394 insertions(+), 77 deletions(-) (limited to 'nuttx/arch/z80/src/z180') diff --git a/nuttx/arch/z80/src/z180/z180_iomap.h b/nuttx/arch/z80/src/z180/z180_iomap.h index c4c996f81..4a695f95d 100644 --- a/nuttx/arch/z80/src/z180/z180_iomap.h +++ b/nuttx/arch/z80/src/z180/z180_iomap.h @@ -164,10 +164,10 @@ /* CTC Registers */ -# define Z181_CTC0 0xe4 /* CTC Channel 0 Control Register */ -# define Z181_CTC1 0xe5 /* CTC Channel 1 Control Register */ -# define Z181_CTC2 0xe6 /* CTC Channel 2 Control Register */ -# define Z181_CTC3 0xe7 /* CTC Channel 3 Control Register */ +# define Z181_CTC0 0xe4 /* CTC Channel 0 Control/Vector Register */ +# define Z181_CTC1 0xe5 /* CTC Channel 1 Control/Vector Register */ +# define Z181_CTC2 0xe6 /* CTC Channel 2 Control/Vector Register */ +# define Z181_CTC3 0xe7 /* CTC Channel 3 Control/Vector Register */ /* SCC Registers */ @@ -177,7 +177,7 @@ /* System Control Registers */ # define Z181_RAM_UBR 0xea /* RAM Upper Boundary Address Register */ -# define Z181_RAM_LBR 0xeb /* RAM Lower Boundary Address Register*/ +# define Z181_RAM_LBR 0xeb /* RAM Lower Boundary Address Register */ # define Z181_ROM_BR 0xec /* ROM Address Boundary Register */ # define Z181_SCR 0xed /* System Configuration Register */ #endif @@ -185,58 +185,57 @@ /* Registers unique to Z8x182 class CPUs */ #ifdef HAVE_Z8X182 -# define Z182_WSGCS 0xd8 /* WSG Chip Select Register */ -# define Z182_ENH182 0xd9 /* Z80182 Enhancements Register */ -# define Z182_INTEDGE 0xdf /* Interrupt Edge/Pin MUX Control */ -# define Z182_PINMUX 0xdf /* Interrupt Edge/Pin MUX Control */ +# define Z182_WSGCS 0xd8 /* WSG Chip Select Register */ +# define Z182_ENH182 0xd9 /* Z80182 Enhancements Register */ +# define Z182_INTEDGE 0xdf /* Interrupt Edge/Pin MUX Control */ /* PIA Registers */ -# define Z182_PA_DDR 0xed /* PA Data Direction Register */ -# define Z182_PA_DR 0xee /* PA Data Register */ -# define Z182_PB_DDR 0xe4 /* PB Data Direction Register */ -# define Z182_PB_DR 0xe5 /* PB Data Register */ -# define Z182_PC_DDR 0xdd /* PC Data Direction Register */ -# define Z182_PC_DR 0xde /* PC Data Register */ +# define Z182_PA_DDR 0xed /* PA Data Direction Register */ +# define Z182_PA_DR 0xee /* PA Data Register */ +# define Z182_PB_DDR 0xe4 /* PB Data Direction Register */ +# define Z182_PB_DR 0xe5 /* PB Data Register */ +# define Z182_PC_DDR 0xdd /* PC Data Direction Register */ +# define Z182_PC_DR 0xde /* PC Data Register */ /* ESCC Registers */ -# define Z182_ESCCA_CR 0xe0 /* ESCC Chan A Control Register */ -# define Z182_ESCCA_DR 0xe1 /* ESCC Chan A Data Register */ -# define Z182_ESCCB_CR 0xe2 /* ESCC Chan B Control Register */ -# define Z182_ESCCB_DR 0xe3 /* ESCC Chan B Data Register */ +# define Z182_ESCCA_CR 0xe0 /* ESCC Chan A Control Register */ +# define Z182_ESCCA_DR 0xe1 /* ESCC Chan A Data Register */ +# define Z182_ESCCB_CR 0xe2 /* ESCC Chan B Control Register */ +# define Z182_ESCCB_DR 0xe3 /* ESCC Chan B Data Register */ /* System Control Registers */ -# define Z182_RAM_UBR 0xe6 /* RAMUBR RAM Upper Boundary Register */ -# define Z182_RAM_LBR 0xe7 /* RAMLBR RAM Lower Boundary Register */ -# define Z182_ROM_BR 0xe8 /* ROM Address Boundary Register */ -# define Z182_SCR 0xef /* System Configuration Register */ +# define Z182_RAM_UBR 0xe6 /* RAMUBR RAM Upper Boundary Register */ +# define Z182_RAM_LBR 0xe7 /* RAMLBR RAM Lower Boundary Register */ +# define Z182_ROM_BR 0xe8 /* ROM Address Boundary Register */ +# define Z182_SCR 0xef /* System Configuration Register */ /* 16550 MIMIC Registers */ -# define Z182_MIMIC_FCR 0xe9 /* FIFO Control Register */ -# define Z182_MIMIC_MM 0xe9 /* MM register */ -# define Z182_MIMIC_RTTC 0xea /* Receive Timeout Time Constant */ -# define Z182_MIMIC_TTTC 0xeb /* Transmit Timeout Time Constant */ -# define Z182_MIMIC_FSCR 0xec /* FIFO Status and Control */ -# define Z182_MIMIC_RBR 0xf0 /* Receive Buffer Register */ -# define Z182_MIMIC_THR 0xf0 /* Transmit Holding Register */ -# define Z182_MIMIC_IER 0xf1 /* Interrupt Enable Register */ -# define Z182_MIMIC_LCR 0xf3 /* Line Control Register */ -# define Z182_MIMIC_MCR 0xf4 /* Modem Control Register */ -# define Z182_MIMIC_LSR 0xf5 /* Line Status Register */ -# define Z182_MIMIC_MSR 0xf6 /* Modem Status Register */ -# define Z182_MIMIC_SCR 0xf7 /* Scratch Register */ -# define Z182_MIMIC_DLL 0xf8 /* Divisor Latch (LSByte) */ -# define Z182_MIMIC_DLM 0xf9 /* Divisor Latch (MSByte) */ -# define Z182_MIMIC_TTCR 0xfa /* Transmit Time Constant */ -# define Z182_MIMIC_RTCR 0xfb /* Receive Time Constant */ -# define Z182_MIMIC_IVEC 0xfc /* Interrupt Vector */ -# define Z182_MIMIC_IE 0xfd /* Interrupt Enable */ - -# define Z182_MIMIC_IUSIP 0xfe /* Interrupt Under-Service/Interrupt Pending */ -# define Z182_MIMIC_MMC 0xff /* MIMIC Master Control Register */ +# define Z182_MIMIC_FCR 0xe9 /* FIFO Control Register */ +# define Z182_MIMIC_MM 0xe9 /* MM register */ +# define Z182_MIMIC_RTTC 0xea /* Receive Timeout Time Constant */ +# define Z182_MIMIC_TTTC 0xeb /* Transmit Timeout Time Constant */ +# define Z182_MIMIC_FSCR 0xec /* FIFO Status and Control */ +# define Z182_MIMIC_RBR 0xf0 /* Receive Buffer Register */ +# define Z182_MIMIC_THR 0xf0 /* Transmit Holding Register */ +# define Z182_MIMIC_IER 0xf1 /* Interrupt Enable Register */ +# define Z182_MIMIC_LCR 0xf3 /* Line Control Register */ +# define Z182_MIMIC_MCR 0xf4 /* Modem Control Register */ +# define Z182_MIMIC_LSR 0xf5 /* Line Status Register */ +# define Z182_MIMIC_MSR 0xf6 /* Modem Status Register */ +# define Z182_MIMIC_SCR 0xf7 /* Scratch Register */ +# define Z182_MIMIC_DLL 0xf8 /* Divisor Latch (LSByte) */ +# define Z182_MIMIC_DLM 0xf9 /* Divisor Latch (MSByte) */ +# define Z182_MIMIC_TTCR 0xfa /* Transmit Time Constant */ +# define Z182_MIMIC_RTCR 0xfb /* Receive Time Constant */ +# define Z182_MIMIC_IVEC 0xfc /* Interrupt Vector */ +# define Z182_MIMIC_IE 0xfd /* Interrupt Enable */ + +# define Z182_MIMIC_IUSIP 0xfe /* Interrupt Under-Service/Interrupt Pending */ +# define Z182_MIMIC_MMC 0xff /* MIMIC Master Control Register */ /* Some of the MIMIC registers are accessible to memory-mapped addresses */ @@ -255,33 +254,47 @@ #endif /* [E]SCC Internal Register Definitions */ +/* Read Registers. The SCC contains eight read registers. To read the contents + * of a register (rather than RR0), the program must first initialize a pointer + * to WR0 in exactly the same manner as a write operation. The next I/O read + * cycle will place the contents of the selected read registers onto the data bus + */ + +#define Z18X_SCC_RR0 0x00 /* Transmit and Receive buffer status and external status */ +#define Z18X_SCC_RR1 0x01 /* Special Receive Condition status */ +#define Z18X_SCC_RR2 0x02 /* Interrupt vector (modified if VIS Bit in WR9 is set) */ +#define Z18X_SCC_RR3 0x03 /* Interrupt pending bits */ +#define Z18X_SCC_RR6 0x06 /* SDLC FIFO byte counter lower byte (only when enabled) */ +#define Z18X_SCC_RR7 0x07 /* SDLC FIFO byte count and status (only when enabled) */ +#define Z18X_SCC_RR8 0x08 /* Receive buffer */ +#define Z18X_SCC_RR10 0x0a /* Miscellaneous status bits */ +#define Z18X_SCC_RR12 0x0c /* Lower byte of baud rate generator time constant */ +#define Z18X_SCC_RR13 0x0d /* Upper byte of baud rate generator time constant */ +#define Z18X_SCC_RR15 0x0f /* External Status interrupt information */ + +/* Write Registers. The SCC contains fifteen write registers that are programmed + * to configure the operating modes of the channel. With the exception of WR0, programming + * the write registers is a two step operation. The first operation is a pointer written to + * WR0 that points to the selected register. The second operation is the actual contro + * word that is written into the register to configure the SCC channel + */ -#define Z18X_SCC_RR0 0x00 -#define Z18X_SCC_RR1 0x01 -#define Z18X_SCC_RR2 0x02 -#define Z18X_SCC_RR3 0x03 -#define Z18X_SCC_RR6 0x06 -#define Z18X_SCC_RR7 0x07 -#define Z18X_SCC_RR10 0x0a -#define Z18X_SCC_RR12 0x0c -#define Z18X_SCC_RR13 0x0d -#define Z18X_SCC_RR15 0x0f - -#define Z18X_SCC_WR0 0x00 -#define Z18X_SCC_WR1 0x01 -#define Z18X_SCC_WR2 0x02 -#define Z18X_SCC_WR3 0x03 -#define Z18X_SCC_WR4 0x04 -#define Z18X_SCC_WR5 0x05 -#define Z18X_SCC_WR6 0x06 -#define Z18X_SCC_WR7 0x07 -#define Z18X_SCC_WR9 0x09 -#define Z18X_SCC_WR10 0x0a -#define Z18X_SCC_WR11 0x0b -#define Z18X_SCC_WR12 0x0c -#define Z18X_SCC_WR13 0x0d -#define Z18X_SCC_WR14 0x0e -#define Z18X_SCC_WR15 0x0f +#define Z18X_SCC_WR0 0x00 /* Register Pointers, various initialization commands */ +#define Z18X_SCC_WR1 0x01 /* Transmit and Receive interrupt enables, WAIT/DMA commands */ +#define Z18X_SCC_WR2 0x02 /* Interrupt Vector */ +#define Z18X_SCC_WR3 0x03 /* Receive parameters and control modes */ +#define Z18X_SCC_WR4 0x04 /* Transmit and Receive modes and parameters */ +#define Z18X_SCC_WR5 0x05 /* Transmit parameters and control modes */ +#define Z18X_SCC_WR6 0x06 /* Sync Character or SDLC address */ +#define Z18X_SCC_WR7 0x07 /* Sync Character or SDLC flag */ +#define Z18X_SCC_WR8 0x08 /* Transmit buffer */ +#define Z18X_SCC_WR9 0x09 /* Master Interrupt control and reset commands */ +#define Z18X_SCC_WR10 0x0a /* Miscellaneous transmit and receive control bits */ +#define Z18X_SCC_WR11 0x0b /* Clock mode controls for receive and transmit */ +#define Z18X_SCC_WR12 0x0c /* Lower byte of baud rate generator */ +#define Z18X_SCC_WR13 0x0d /* Upper byte of baud rate generator */ +#define Z18X_SCC_WR14 0x0e /* Miscellaneous control bits */ +#define Z18X_SCC_WR15 0x0f /* External status interrupt enable control */ /* Z180 Register Bit definitions ****************************************************/ /* ASCI Registers *******************************************************************/ @@ -541,31 +554,335 @@ /* Registers unique to Z8x181 class CPUs ********************************************/ #ifdef HAVE_Z8X181 -/* To be provided */ - /* PIA Registers */ +/* PIAn Data Direction and Data Registers */ + +# define PIA(n) (1 << (n)) /* CTC Registers */ +/* CTC Channel Control/Vector Registers */ +/* Control Bit Definitions */ -/* SCC Registers */ +# define CTC_IE (0x80) /* Bit 7: Interrupt Enable */ +# define CTC_MODE (0x40) /* Bit 6: Mode bit */ +# define CTC_PF (0x20) /* Bit 5: Pre-scaler factor */ +# define CTC_CTES (0x10) /* Bit 4: Clock/Trigger Edge Selector */ +# define CTC_TT (0x08) /* Bit 3: Timer Trigger */ +# define CTC_TC (0x04) /* Bit 2: Time Constant */ +# define CTC_SR (0x02) /* Bit 1: Software Reset */ + +/* Vector Bit Definitions */ + +# define CTC_CHAN_SHIFT (1) /* Bits 1-2: Channel Identifier */ +# define CTC_CHAN_MASK (3 << CTC_CHAN_SHIFT) +# define CTC_VECT_SHIFT (3) /* Bits 3-7: Vector word */ +# define CTC_VECT_MASK (31 << CTC_VECT_SHIFT) + +# define CTC_CNTRL (0x01) /* Bit 0: 0=Vector 1=Control */ + +/* SCC Registers -- See interface description below */ /* System Control Registers */ +/* RAM Upper Boundary Address Register -- 8-bit address (A12-A19) */ +/* RAM Lower Boundary Address Register -- 8-bit address (A12-A19) */ +/* ROM Address Boundary Register -- 8-bit address (A12-A19) */ + +/* System Configuration Register */ + +#define SCR_DCCONFIG (0x40) /* Bit 6: Daisy Chain Configuration */ +#define SCR_ROMCSDIS (0x20) /* Bit 5: Disable /ROMCS */ +#define SCR_REME (0x04) /* Bit 2: ROM Emulator Mode */ +#define SCR_PIA1_CTIO (0x01) /* Bit 0: PIA1 Functions as I/O port or CTC's I/O Pins */ #endif /* Registers unique to Z8x182 class CPUs ********************************************/ #ifdef HAVE_Z8X182 -/* To be provided */ - /* PIA Registers */ +/* Pn Data Direction and Data Register */ -/* ESCC Registers */ +# define PIA(n) (1 << (n)) + +/* ESCC Registers -- See interface description below */ /* System Control Registers */ +# define SCR_PCSEL (0x80) /* Bit 7: Port C Select */ +# define SCR_PB57SEL (0x40) /* Bit 6: Port PB7-PB5 Selec */ +# define SCR_PB04SEL (0x20) /* Bit 5: Port PB4-PB0 Select */ +# define SCR_DOUT (0x10) /* Bit 4: Data Out */ +# define SCR_ROMDIS (0x08) /* Bit 3: Disable ROMs */ +# define SCR_TRIMUX (0x04) /* Bit 2: Tri-Muxed Pins */ +# define SCR_MIMIC (0x02) /* Bit 1: ESCC/MIMIC */ +# define SCR_DC (0x01) /* Bit 0: Daisy Chain */ + /* 16550 MIMIC Registers */ +/* To be provided */ + +#endif +/* [E]SCC Internal Register Definitions *********************************************/ +/* Read Registers */ + +/* RR0: Transmit and Receive buffer status and external status */ + +#define RR0_BA (0x80) /* Bit 7: Break/abort*/ +#define RR0_TXUEOM (0x40) /* Bit 6: Tx Underrun/EOM*/ +#define RR0_CTS (0x20) /* Bit 5: CTS */ +#define RR0_SH (0x10) /* Bit4: Sync/Hunt */ +#define RR0_DCD (0x08) /* Bit 3: DCD */ +#define RR0_TXBE (0x04) /* Bit 2: Tx Buffer Empty */ +#define RR0_ZC (0x02) /* Bit 1: Zero Count*/ +#define RR0_RXA (0x01) /* Bit 0: Rx Character Available */ + +/* RR1: Special Receive Condition status */ + +#define RR0_EOF (0x80) /* Bit 7: End of Frame (SDLC)*/ +#define RR0_CRCFE (0x40) /* Bit 6: CRC/Framing Error */ +#define RR0_RXOE (0x20) /* Bit 5: Rx Overrun Error */ +#define RR0_PE (0x10) /* Bit 4: Parity Error */ +#define RR0_RES0 (0x08) /* Bit 3: Residue Code 0 */ +#define RR0_RES1 (0x04) /* Bit 2: Residue Code 1 */ +#define RR0_RES2 (0x02) /* Bit 1: Residue Code 2 */ +#define RR0_ALL (0x01) /* Bit 0: All Sent*/ + +/* RR2: Interrupt vector (modified if VIS Bit in WR9 is set) -- 8-bit vector value */ + +/* RR3: Interrupt pending bits */ + +#define RR3_RX (0x20) /* Bit 5: Rx IP */ +#define RR3_TX (0x10) /* Bit 4: Tx IP */ +#define RR3_EXT (0x08) /* Bit 3: Ext/Status IP */ + +/* RR6: SDLC FIFO byte counter lower byte (only when enabled) -- 8-bit counter value */ +/* RR7: SDLC FIFO byte count and status (only when enabled) */ + +#define RR7_BC_SHIFT (0) /* Bits 0-5 : Upper 6-bits of counter */ +#define RR7_BC_MASK (0x3f << RR7_BC_SHIFT) +#define RR7_FDA (0x40) /* Bit 6: FIFO Available Status */ +#define RR7_FOS (0x80) /* Bit 7: FIFO Overflow Status */ + +/* RR8: Receive buffer */ +/* RR10: Miscellaneous status bits */ + +#define RR10_1MISS (0x80) /* Bit 7: One Clock Missing */ +#define RR10_2MISS (0x40) /* Bit 6: Two Clocks Mising */ +#define RR10_SEND (0x10) /* Bit 4: Loop Sending */ +#define RR10_ON (0x02) /* Bit 1: On Loop */ + +/* RR12: Lower byte of baud rate generator time constant -- 8-bit time constant value */ +/* RR13: Upper byte of baud rate generator time constant -- 8-bit time constant value */ + +/* RR15: External Status interrupt information */ + +#define RR15_BAIE (0x80) /* Bit 7: Break/Abort IE */ +#define RR15_TXUEOMIE (0x40) /* Bit 6: Tx Underrun/EOM IE */ +#define RR15_CTSIE (0x20) /* Bit 5: CTS IE */ +#define RR15_SHIE (0x10) /* Bit 4: Sync/Hunt IE */ +#define RR15_DCDIE (0x08) /* Bit 3: DCD IE */ +#ifdef HAVE_Z8X182 /* ESCC only */ +# define RR15_SDLCIE (0x04) /* Bit 2: SDLC Status FIFO Enable */ +#endif +#define RR15_ZCIE (0x02) /* Bit 1: Zero Count IE */ + +/* Write Registers */ + +/* WR0: Register Pointers, various initialization commands */ + +#define WR0_CMD1_SHIFT (6) /* Bits 6-7: Command */ +#define WR0_CMD1_MASK (3 << WR0_CMD1_SHIFT); +# define WR0_CMD1_NULL (0 << WR0_CMD1_SHIFT); /* Null Code */ +# define WR0_CMD1_RXCRCRST (1 << WR0_CMD1_SHIFT); /* Reset Rx CRC Checker */ +# define WR0_CMD1_TXCRCRST (2 << WR0_CMD1_SHIFT); /* Reset Tx CRC Generator */ +# define WR0_CMD1_TXURRST (3 << WR0_CMD1_SHIFT); /* Reset Tx Underrun/EOM Latch */ +#define WR0_CMD2_SHIFT (3) /* Bits 3-5: Command */ +#define WR0_CMD2_MASK (3 << WR0_CMD2_SHIFT); +# define WR0_CMD2_NULL (0 << WR0_CMD2_SHIFT); /* Null Code */ +# define WR0_CMD2_HP (1 << WR0_CMD2_SHIFT); /* Point High */ +# define WR0_CMD2_EXTRST (2 << WR0_CMD2_SHIFT); /* Reset Ext/Status Interrupts */ +# define WR0_CMD2_ABORT (3 << WR0_CMD2_SHIFT); /* Send Abort (SDLC) */ +# define WR0_CMD2_ENRX (4 << WR0_CMD2_SHIFT); /* Enable Int on Next Rx Character */ +# define WR0_CMD2_TXPRST (5 << WR0_CMD2_SHIFT); /* Reset Tx Int Pending */ +# define WR0_CMD2_ERRRST (6 << WR0_CMD2_SHIFT); /* Error Reset */ +# define WR0_CMD2_IUSRST (7 << WR0_CMD2_SHIFT); /* Reset Highest IUS */ +#define WR0_REG_SHIFT (0) /* Bits 0-2 : Register address */ +#define WR0_REG_MASK (7 << WR0_REG_SHIFT); + +/* WR1: Transmit and Receive interrupt enables, WAIT/DMA commands */ + +#define WR1_WDMAEN (0x80) /* Bit 7: WAIT/DMA Request Enable */ +#define WR1_WDMAFN (0x40) /* Bit : /WAIT/DMA Request Function */ +#define WR1_WDMAXFR (0x20) /* Bit : WAIT/DMA Request On Receive//Transmit */ +#define WR1_CMD_SHIFT (3) /* Bits 3-4: Command */ +#define WR1_CMD_MASK (3 << WR1_CMD_SHIFT) +# define WR1_CMD_RXDIS (0 << WR1_CMD_SHIFT) /* Rx Int Disable */ +# define WR1_CMD_RXINT1ST (1 << WR1_CMD_SHIFT) /* Rx Int On First Character or Special Condition */ +# define WR1_CMD_RXINTALL (2 << WR1_CMD_SHIFT) /* Int On All Rx Characters or Special Condition */ +# define WR1_CMD_RXINTSPEC (3 << WR1_CMD_SHIFT) /* Rx Int On Special Condition Only */ +#define WR1_PSPEC (0x04) /* Bit 2: Parity is Special Condition */ +#define WR1_TXIE (0x02) /* Bit 1: Tx Int Enable */ +#define WR1_EXTIE (0x01) /* Bit 0: Ext Int Enable */ + +/* WR2: Interrupt Vector -- 8-bit interrupt vector */ + +/* WR3: Receive parameters and control modes */ + +#define WR3_BPC_SHIFT (6) /* Bit 6-7: Bits/character */ +#define WR3_BPC_MASK (3 << WR3_BPC_SHIFT) +# define WR3_BPC_5 (0 << WR3_BPC_SHIFT) /* Rx 5 Bits/Character */ +# define WR3_BPC_7 (1 << WR3_BPC_SHIFT) /* Rx 7 Bits/Character */ +# define WR3_BPC_6 (2 << WR3_BPC_SHIFT) /* Rx 6 Bits/Character */ +# define WR3_BPC_8 (3 << WR3_BPC_SHIFT) /* Rx 8 Bits/Character */ +#define WR3_AE (0x20) /* Bit 5: Auto Enables */ +#define WR3_EHM (0x10) /* Bit 4: Enter Hunt Mode */ +#define WR3_RXCRCEN (0x08) /* Bit 3: Rx CRC Enable */ +#define WR3_ASM (0x04) /* Bit 2: Address Search Mode (SDLC) */ +#define WR3_SCLI (0x02) /* Bit 1: Sync Character Load Inhibit */ +#define WR3_RXEN (0x01) /* Bit 0: Rx Enable */ + +/* WR4: Transmit and Receive modes and parameters */ + +#define WR4_CM_SHIFT (6) /* Bits 6-7: X1 Clock Mode */ +#define WR4_CM_MASK (3 << WR4_CM_SHIFT) +# define WR4_CM_X1 (0 << WR4_CM_SHIFT) /* X1 Clock Mode */ +# define WR4_CM_X16 (1 << WR4_CM_SHIFT) /* X16 Clock Mode */ +# define WR4_CM_X32 (2 << WR4_CM_SHIFT) /* X32 Clock Mode */ +# define WR4_CM_X64 (3 << WR4_CM_SHIFT) /* X64 Clock Mode */ +#define WR4_SM_SHIFT (4) /* Bits 4-5: Sync mode */ +#define WR4_SM_MASK (3 << WR4_SM_SHIFT) +# define WR4_SM_8BIT (0 << WR4_SM_SHIFT) /* 8-Bit Sync Character */ +# define WR4_SM_16BIT (1 << WR4_SM_SHIFT) /* 16-Bit Sync Character */ +# define WR4_SM_SDLC (2 << WR4_SM_SHIFT) /* SDLC Mode (01111110 Flag) */ +# define WR4_SM_EXT (3 << WR4_SM_SHIFT) /* External Sync Mode */ +#define WR4_SB_SHIFT (2) /* Bits 2-3: Sync mode enables */ +#define WR4_SB_MASK (3 << WR4_SB_SHIFT) +# define WR4_SB_SME (0 << WR4_SB_SHIFT) /* Sync Modes Enable */ +# define WR4_SB_STOP1 (1 << WR4_SB_SHIFT) /* 1 Stop Bit/Character */ +# define WR4_SB_STOP1p5 (2 << WR4_SB_SHIFT) /* 1 1/2 Stop Bits/Character */ +# define WR4_SB_STOP2 (3 << WR4_SB_SHIFT) /* 2 Stop Bits/Character */ +#define WR4_PEO (0x02) /* Bit 1: Parity EVEN//ODD */ +#define WR4_PEN (0x01) /* Bit : Parity Enable */ + +/* WR5: Transmit parameters and control modes */ + +#define WR5_DTR (0x80) /* Bit 7: DTR */ +#define WR5_TXBITS_SHIFT (5) /* Bits 5-6: Number of Tx bits */ +#define WR5_TXBITS_MASK (3 << WR5_TXBITS_SHIFT) +# define WR5_TXBITS_5 (0 << WR5_TXBITS_SHIFT) /* Tx 5 Bits(Or Less)/Character */ +# define WR5_TXBITS_7 (1 << WR5_TXBITS_SHIFT) /* Tx 7 Bits/Character */ +# define WR5_TXBITS_6 (2 << WR5_TXBITS_SHIFT) /* Tx 6 Bits/Character */ +# define WR5_TXBITS_8 (3 << WR5_TXBITS_SHIFT) /* Tx 8 Bits/Character */ +#define WR5_SENDBRK (0x10) /* Bit 4: Send Break */ +#define WR5_TXEN (0x08) /* Bit 3: Tx Enable */ +#define WR5_CRC16 (0x04) /* Bit 2: /SDLC/CRC-16 */ +#define WR5_RTS (0x02) /* Bit 1: RTS */ +#define WR5_TXCRCEN (0x01) /* Bit 0: Tx CRC Enable */ + +/* WR6: Sync Character or SDLC address -- 8-bit Monosync, Bisync, or SDLC value */ +/* WR7: Sync Character or SDLC flag -- 8-bit Monosync, Bisync, or SDLC value */ + +#define WR7_SDLC_SYNC (0x7e) + +#ifdef HAVE_Z8X182 /* ESCC only */ +# define WR7P_CRC32EN (0x80) /* Bit 7: 32-bit CRC Enable */ +# define WR7P_EXTRDEN (0x40) /* Bit 6: Extended Read Enable */ +# define WR7P_TXFLVL (0x20) /* Bit 5: Tx FIFO Int Level */ +# define WR7P_TMODE (0x10) /* Bit 4: DTR/REQ Timing Mode */ +# define WR7P_RXFLVL (0x08) /* Bit 3: Rx FIFO Int Level */ +# define WR7P_AUTORTS (0x04) /* Bit 2: Auto RTS Deactivation */ +# define WR7P_AUTOEOM (0x02) /* Bit 1: Auto EOM Reset */ +# define WR7P_AUTOTX (0x01) /* Bit 0: Auto Tx Flag */ +#endif + +/* WR8: Transmit buffer */ + +/* WR9: Master Interrupt control and reset commands */ + +#define WR9_RST_SHIFT (6) /* Bits 6-7: Resets */ +#define WR9_RST_MASK (3 << WR9_RST_SHIFT) +# define WR9_RST_NONE (0 << WR9_RST_SHIFT) /* No Reset */ +# define WR9_RST_CHAN (2 << WR9_RST_SHIFT) /* Channel Reset */ +# define WR9_RST_HWRST (3 << WR9_RST_SHIFT) /* Force Hardware Reset */ +#ifdef HAVE_Z8X182 /* ESCC only */ +# define WR9_INTACKEN (0x20) /* Bit 5: Software INTACK Enable */ +#endif +#define WR9_SHL (0x10) /* Bit 4: Status High//Status Low */ +#define WR9_MIE (0x08) /* Bit 3: MIE */ +#define WR9_DLC (0x04) /* Bit 2: DLC */ +#define WR9_NV (0x02) /* Bit 1: NV */ +#define WR9_VIS (0x01) /* Bit 0: VIS */ + +/* WR10: Miscellaneous transmit and receive control bits */ + +#define WR10_CRCPRE (0x80) /* Bit 7: CRC Preset I/O */ +#define WR10_NRZFM_SHIFT (5) /* Bits 5-6: NRZ/FM */ +#define WR10_NRZFM_MASK (3 << WR10_NRZFM_SHIFT) +# define WR10_NRZ (0 << WR10_NRZFM_SHIFT) /* NRZ */ +# define WR10_NRZI (1 << WR10_NRZFM_SHIFT) /* NRZI */ +# define WR10_FM1 (2 << WR10_NRZFM_SHIFT) /* FM1 (Transition = 1) */ +# define WR10_FM0 (3 << WR10_NRZFM_SHIFT) /* FM0 (Transition = 0) */ +#define WR10_ACTPOLL (0x10) /* Bit 4: Go Active On Poll */ +#define WR10_IDLE (0x08) /* Bit 3: Mark/Flag Idle */ +#define WR10_URABORT (0x04) /* Bit 2: Abort/Flag On Underrun */ +#define WR10_LOOP (0x02) /* Bit 1: Loop Mode */ +#define WR10_68SYNC (0x01) /* Bit 0: 6-Bit//8-Bit Sync */ + +/* WR11: Clock mode controls for receive and transmit */ + +#define WR11_XTAL (0x80) /* Bit 7: /RTxC Xtal//No Xtal */ +#define WR11_RCLK_SHIFT (5) /* Bits 5-6: Receive Clock */ +#define WR11_RCLK_MASK (3 << WR11_RCLK_SHIFT) +# define WR11_RCLK_RTXC (0 << WR11_RCLK_SHIFT) /* Receive Clock = /RTxC Pin */ +# define WR11_RCLK_TRXC (1 << WR11_RCLK_SHIFT) /* Receive Clock = /TRxC Pin */ +# define WR11_RCLK_BRG (2 << WR11_RCLK_SHIFT) /* Receive Clock = BR Generator Output */ +# define WR11_RCLK_DPLL (3 << WR11_RCLK_SHIFT) /* Receive Clock = DPLL Output */ +#define WR11_TCLK_SHIFT (3) /* Bits 3-4: Transmit Clock */ +#define WR11_TCLK_MASK (3 << WR11_TCLK_SHIFT) +# define WR11_TCLK_RTXC (0 << WR11_TCLK_SHIFT) /* Transmit Clock = /RTxC Pin */ +# define WR11_TCLK_TRXC (1 << WR11_TCLK_SHIFT) /* Transmit Clock = /TRxC Pin */ +# define WR11_TCLK_BRG (2 << WR11_TCLK_SHIFT) /* Transmit Clock = BR Generator Output */ +# define WR11_TCLK_DPLL (3 << WR11_TCLK_SHIFT) /* Transmit Clock = DPLL Output */ +#define WR11_TRXCIO (0x04) /* Bit 2: /TRxC O/I */ +#define WR11_TRXCO_SHIFT (0) /* Bits 0-1 : /TRxC Out */ +#define WR11_TRXO_MASK (3 << WR11_TRXCO_SHIFT) +# define WR11_TRXO_XTAL (0 << WR11_TRXCO_SHIFT) /* /TRxC Out = Xtal Output */ +# define WR11_TRXO_TCLK (1 << WR11_TRXCO_SHIFT) /* /TRxC Out = Transmit Clock */ +# define WR11_TRXO_BRG (2 << WR11_TRXCO_SHIFT) /* /TRxC Out = BR Generator Output */ +# define WR11_TRXO_DPLL (3 << WR11_TRXCO_SHIFT) /* /TRxC Out = DPLL Output */ + +/* WR12: Lower byte of baud rate generator -- 8-bit time constant value */ +/* WR13: Upper byte of baud rate generator -- 8-bit time constant value */ + +/* WR14: Miscellaneous control bits */ + +#define WR14_CMD_SHIFT (5) /* Bits 5-7: Command */ +#define WR14_CMD_MASK (7 << WR14_CMD_SHIFT) +# define WR14_CMD_NULL (0 << WR14_CMD_SHIFT) /* Null Command */ +# define WR14_CMD_ESM (1 << WR14_CMD_SHIFT) /* Enter Search Mode */ +# define WR14_CMD_RMCLK (2 << WR14_CMD_SHIFT) /* Reset Missing Clock */ +# define WR14_CMD_DPLLDIS (3 << WR14_CMD_SHIFT) /* Disable DPLL */ +# define WR14_CMD_SRCBRG (4 << WR14_CMD_SHIFT) /* Set Source = BR Generator */ +# define WR14_CMD_SRCRTXC (5 << WR14_CMD_SHIFT) /* Set Source = /RTxC */ +# define WR14_CMD_FM (6 << WR14_CMD_SHIFT) /* Set FM Mode */ +# define WR14_CMD_NRZI (7 << WR14_CMD_SHIFT) /* Set NRZI Mode */ +#define WR14_LPBK (0x10) /* Bit 4: Local Loopback */ +#define WR14_AUTOECHO (0x08) /* Bit 3: Auto Echo */ +#define WR14_DTRREQ (0x04) /* Bit 2: /DTR/Request Function */ +#define WR14_BRGSRC (0x02) /* Bit 1: BR Generator Source */ +#define WR14_BRGEN (0x01) /* Bit 0: BR Generator Enable */ + +/* WR15: External status interrupt enable control */ + +#define WR15_BAIE (0x80) /* Bit 7: Break/Abort IE */ +#define WR15_TXUEOMIE (0x40) /* Bit 6: Tx Underrun/EOM IE */ +#define WR15_CTSIS (0x20) /* Bit 5: CTS IE */ +#define WR15_SHIE (0x10) /* Bit 4: Sync/Hunt IE */ +#define WR15_DCDIE (0x08) /* Bit 3: DCD IE */ +#define WR15_FIFOEN (0x04) /* Bit 2: SDLC FIFO Enable */ +#define WR15_ZCIE (0x02) /* Bit 1: Zero Count IE */ +#ifdef HAVE_Z8X182 /* ESCC only */ +# define WR15_WR7PEN (0x01) /* Bit 0: WR7' SDLC Feature Enable */ #endif #endif /* __ARCH_Z80_SRC_Z180_Z180_IOMAP_H */ -- cgit v1.2.3