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/* z8536.h
*
* This include file defines information related to a Zilog Z8536
* Counter/Timer/IO Chip. It is a IO mapped part.
*
* Input parameters: NONE
*
* Output parameters: NONE
*
* NOTE: This file shares as much as possible with the include
* file for the Z8036 via z8x36.h.
*
* COPYRIGHT (c) 1989-1999.
* On-Line Applications Research Corporation (OAR).
*
* The license and distribution terms for this file may be
* found in the file LICENSE in this distribution or at
* http://www.OARcorp.com/rtems/license.html.
*
* $Id$
*/
#ifndef __Z8536_h
#define __Z8536_h
#ifdef __cplusplus
extern "C" {
#endif
/* macros */
#define VOL8( ptr ) ((volatile rtems_unsigned8 *)(ptr))
#define Z8x36_STATE0 ( z8536 ) \
{ char *garbage; \
(garbage) = *(VOL8(z8536+0xC)) \
}
#define Z8x36_WRITE( z8536, reg, data ) \
*(VOL8(z8536+0xC)) = (reg); \
*(VOL8(z8536+0xC)) = (data)
#define Z8x36_READ( z8536, reg, data ) \
*(VOL8(z8536+0xC)) = (reg); \
(data) = *(VOL8(z8536+0xC))
/* structures */
/* MAIN CONTROL REGISTERS (0x00-0x07) */
#define MASTER_INTR 0x00 /* Master Interrupt Ctl Reg */
#define MASTER_CFG 0x01 /* Master Configuration Ctl Reg */
#define PORTA_VECTOR 0x02 /* Port A - Interrupt Vector */
#define PORTB_VECTOR 0x03 /* Port B - Interrupt Vector */
#define CNT_TMR_VECTOR 0x04 /* Counter/Timer Interrupt Vector */
#define PORTC_DATA_POLARITY 0x05 /* Port C - Data Path Polarity */
#define PORTC_DIRECTION 0x06 /* Port C - Data Direction */
#define PORTC_SPECIAL_IO_CTL 0x07 /* Port C - Special IO Control */
/* MOST OFTEN ACCESSED REGISTERS (0x08 - 0x0f) */
#define PORTA_CMD_STATUS 0x08 /* Port A - Command Status Reg */
#define PORTB_CMD_STATUS 0x09 /* Port B - Command Status Reg */
#define CT1_CMD_STATUS 0x0a /* Ctr/Timer 1 - Command Status Reg */
#define CT2_CMD_STATUS 0x0b /* Ctr/Timer 2 - Command Status Reg */
#define CT3_CMD_STATUS 0x0c /* Ctr/Timer 3 - Command Status Reg */
#define PORTA_DATA 0x0d /* Port A - Data */
#define PORTB_DATA 0x0e /* Port B - Data */
#define PORTC_DATA 0x0f /* Port C - Data */
/* COUNTER/TIMER RELATED REGISTERS (0x10-0x1f) */
#define CT1_CUR_CNT_MSB 0x10 /* Ctr/Timer 1 - Current Count (MSB) */
#define CT1_CUR_CNT_LSB 0x11 /* Ctr/Timer 1 - Current Count (LSB) */
#define CT2_CUR_CNT_MSB 0x12 /* Ctr/Timer 2 - Current Count (MSB) */
#define CT2_CUR_CNT_LSB 0x13 /* Ctr/Timer 2 - Current Count (LSB) */
#define CT3_CUR_CNT_MSB 0x14 /* Ctr/Timer 3 - Current Count (MSB) */
#define CT3_CUR_CNT_LSB 0x15 /* Ctr/Timer 3 - Current Count (LSB) */
#define CT1_TIME_CONST_MSB 0x16 /* Ctr/Timer 1 - Time Constant (MSB) */
#define CT1_TIME_CONST_LSB 0x17 /* Ctr/Timer 1 - Time Constant (LSB) */
#define CT2_TIME_CONST_MSB 0x18 /* Ctr/Timer 2 - Time Constant (MSB) */
#define CT2_TIME_CONST_LSB 0x19 /* Ctr/Timer 2 - Time Constant (LSB) */
#define CT3_TIME_CONST_MSB 0x1a /* Ctr/Timer 3 - Time Constant (MSB) */
#define CT3_TIME_CONST_LSB 0x1b /* Ctr/Timer 3 - Time Constant (LSB) */
#define CT1_MODE_SPEC 0x1c /* Ctr/Timer 1 - Mode Specification */
#define CT2_MODE_SPEC 0x1d /* Ctr/Timer 2 - Mode Specification */
#define CT3_MODE_SPEC 0x1e /* Ctr/Timer 3 - Mode Specification */
#define CURRENT_VECTOR 0x1f /* Current Vector */
/* PORT A SPECIFICATION REGISTERS (0x20 -0x27) */
#define PORTA_MODE 0x20 /* Port A - Mode Specification */
#define PORTA_HANDSHAKE 0x21 /* Port A - Handshake Specification */
#define PORTA_DATA_POLARITY 0x22 /* Port A - Data Path Polarity */
#define PORTA_DIRECTION 0x23 /* Port A - Data Direction */
#define PORTA_SPECIAL_IO_CTL 0x24 /* Port A - Special IO Control */
#define PORTA_PATT_POLARITY 0x25 /* Port A - Pattern Polarity */
#define PORTA_PATT_TRANS 0x26 /* Port A - Pattern Transition */
#define PORTA_PATT_MASK 0x27 /* Port A - Pattern Mask */
/* PORT B SPECIFICATION REGISTERS (0x28-0x2f) */
#define PORTB_MODE 0x28 /* Port B - Mode Specification */
#define PORTB_HANDSHAKE 0x29 /* Port B - Handshake Specification */
#define PORTB_DATA_POLARITY 0x2a /* Port B - Data Path Polarity */
#define PORTB_DIRECTION 0x2b /* Port B - Data Direction */
#define PORTB_SPECIAL_IO_CTL 0x2c /* Port B - Special IO Control */
#define PORTB_PATT_POLARITY 0x2d /* Port B - Pattern Polarity */
#define PORTB_PATT_TRANS 0x2e /* Port B - Pattern Transition */
#define PORTB_PATT_MASK 0x2f /* Port B - Pattern Mask */
#ifdef __cplusplus
}
#endif
#endif
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