| 1 | /* mc68681reg.h -- Motorola mc68681 DUART register offsets. |
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| 2 | * Copyright (c) 1995 Cygnus Support |
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| 3 | * |
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| 4 | * The authors hereby grant permission to use, copy, modify, distribute, |
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| 5 | * and license this software and its documentation for any purpose, provided |
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| 6 | * that existing copyright notices are retained in all copies and that this |
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| 7 | * notice is included verbatim in any distributions. No written agreement, |
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| 8 | * license, or royalty fee is required for any of the authorized uses. |
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| 9 | * Modifications to this software may be copyrighted by their authors |
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| 10 | * and need not follow the licensing terms described here, provided that |
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| 11 | * the new terms are clearly indicated on the first page of each file where |
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| 12 | * they apply. |
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| 13 | */ |
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| 14 | |
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| 15 | #define DUART_MR1A 0x00 /* Mode Register A */ |
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| 16 | #define DUART_MR1A 0x00 /* Mode Register A */ |
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| 17 | #define DUART_SRA 0x01 /* Status Register A */ |
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| 18 | #define DUART_CSRA 0x01 /* Clock-Select Register A */ |
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| 19 | #define DUART_CRA 0x02 /* Command Register A */ |
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| 20 | #define DUART_RBA 0x03 /* Receive Buffer A */ |
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| 21 | #define DUART_TBA 0x03 /* Transmit Buffer A */ |
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| 22 | #define DUART_IPCR 0x04 /* Input Port Change Register */ |
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| 23 | #define DUART_ACR 0x04 /* Auxiliary Control Register */ |
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| 24 | #define DUART_ISR 0x05 /* Interrupt Status Register */ |
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| 25 | #define DUART_IMR 0x05 /* Interrupt Mask Register */ |
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| 26 | #define DUART_CUR 0x06 /* Counter Mode: current MSB */ |
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| 27 | #define DUART_CTUR 0x06 /* Counter/Timer upper reg */ |
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| 28 | #define DUART_CLR 0x07 /* Counter Mode: current LSB */ |
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| 29 | #define DUART_CTLR 0x07 /* Counter/Timer lower reg */ |
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| 30 | #define DUART_MR1B 0x08 /* Mode Register B */ |
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| 31 | #define DUART_MR2B 0x08 /* Mode Register B */ |
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| 32 | #define DUART_SRB 0x09 /* Status Register B */ |
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| 33 | #define DUART_CSRB 0x09 /* Clock-Select Register B */ |
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| 34 | #define DUART_CRB 0x0A /* Command Register B */ |
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| 35 | #define DUART_RBB 0x0B /* Receive Buffer B */ |
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| 36 | #define DUART_TBB 0x0B /* Transmit Buffer A */ |
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| 37 | #define DUART_IVR 0x0C /* Interrupt Vector Register */ |
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| 38 | #define DUART_IP 0x0D /* Input Port */ |
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| 39 | #define DUART_OPCR 0x0D /* Output Port Configuration Reg. */ |
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| 40 | #define DUART_STRTCC 0x0E /* Start-Counter command */ |
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| 41 | #define DUART_OPRSET 0x0E /* Output Port Reg, SET bits */ |
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| 42 | #define DUART_STOPCC 0x0F /* Stop-Counter command */ |
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| 43 | #define DUART_OPRRST 0x0F /* Output Port Reg, ReSeT bits */ |
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