Motorola MVME172 用户手册

Memory Map of the MC2 Chip Registers

http://www.mcg.mot.com/literature

3-9

MC2 chip Base Address = $FFF42000.

$00

MC2 chip ID

MC2 chip 
Revision

General Control

Interrupt Vector 
Base Register

$04

Tick Timer 1 Compare Register

$08

Tick Timer 1 Counter Register

$0C

Tick Timer 2 Compare Register

$10

Tick Timer 2 Counter Register

$14

LSB Prescaler 
Count Register

Prescaler Clock 
Adjust 

Tick Timer 2 
Control

Tick Timer 1 
Control

$18

Tick Timer 4 
Interrupt Control

Tick Timer 3 
Interrupt Control

Tick Timer 2 
Interrupt Control

Tick Timer 1 
Interrupt Control

$1C

DRAM Parity 
Error Interrupt 
Control 

SCC Interrupt 
Control

Tick Timer 4 
Control

Tick Timer 3 
Control

$20

DRAM Space Base Address Register

SRAM Space Base Address Register

$24

DRAM Space Size

DRAM/SRAM 
Options

SRAM Space Size

Reserved

$28

LANC Error 
Status

Reserved

LANC Interrupt 
Control

LANC Bus Error 
Interrupt Control

$2C

SCSI Error Status

General Purpose 
Inputs

MVME172 
Version

SCSI Interrupt 
Control

$30

Tick Timer 3 Compare Register

$34

Tick Timer 3 Counter Register

$38

Tick Timer 4 Compare Register

$3C

Tick Timer 4 Counter Register