Local Bus Timer

3-8

Memory Map of the MC2 Chip Registers

3-8

Programming Model

3-10

MC2 Chip ID Register

3-11

MC2 Chip Revision Register

3-11

General Control Register

3-12

Interrupt Vector Base Register

3-13

Programming the Tick Timers

3-15

Tick Timer 1 and 2 Compare and Counter Registers

3-15

LSB Prescaler Count Register

3-17

Prescaler Clock Adjust Register

3-18

Tick Timer 1 and 2 Control Registers

3-18

Tick Timer Interrupt Control Registers

3-20

DRAM Parity Error Interrupt Control Register

3-22

SCC Interrupt Control Register

3-23

Tick Timer 3 and 4 Control Registers

3-24

DRAM and SRAM Memory Controller Registers

3-25

DRAM Space Base Address Register

3-25

SRAM Space Base Address Register

3-26

DRAM Space Size Register

3-26

DRAM/SRAM Options Register

3-27

SRAM Space Size Register

3-29

LANC Error Status Register

3-30

82596CA LANC Interrupt Control Register

3-31

LANC Bus Error Interrupt Control Register

3-32

SCSI Error Status Register

3-33

General Purpose Inputs Register

3-33

MVME172 Version Register

3-35

SCSI Interrupt Control Register

3-36

Tick Timer 3 and 4 Compare and Counter Registers

3-37

Bus Clock Register

3-38

PROM Access Time Control Register

3-39

Flash Access Time Control Register

3-40

ABORT Switch Interrupt Control Register

3-41

RESET Switch Control Register

3-42

Watchdog Timer Control Register

3-43

Access and Watchdog Time Base Select Register

3-44

DRAM Control Register

3-45

MPU Status Register

3-46

32-bit Prescaler Count Register

3-48

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Page 12
Image 12
Motorola MVME172 manual Xii