Table 3-2. Mc2 Chip Register Map - Motorola MVME172 Programmer's Reference Manual

MC2 chip Base Address = $FFF42000.
Offset D31-D24
$00 MC2 chip ID
$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
$18 Tick Timer 4
Interrupt Control
$1C DRAM Parity
Error Interrupt
Control
$20 DRAM Space Base Address Register
$24 DRAM Space Size DRAM/SRAM
$28 LANC Error
Status
$2C SCSI Error Status
$30 Tick Timer 3 Compare Register
$34 Tick Timer 3 Counter Register
$38 Tick Timer 4 Compare Register
$3C Tick Timer 4 Counter Register
http://www.mcg.mot.com/literature

Table 3-2. MC2 Chip Register Map

D23-D16
MC2 chip
Revision
Prescaler Clock
Adjust
Tick Timer 3
Interrupt Control
SCC Interrupt
Control
Options
Reserved
General Purpose
Inputs
Memory Map of the MC2 Chip Registers
D15-D8 D7-D0
General Control Interrupt Vector
Base Register
Tick Timer 2 Tick Timer 1
Control Control
Tick Timer 2 Tick Timer 1
Interrupt Control Interrupt Control
Tick Timer 4 Tick Timer 3
Control Control
SRAM Space Base Address Register
SRAM Space Size Reserved
LANC Interrupt LANC Bus Error
Control Interrupt Control
MVME172 SCSI Interrupt
Version Control
3
3-9