SRAM 4-7

Onboard DRAM 4-9

Battery Backed Up RAM and Clock 4-10

VMEbus Interface 4-11

I/O Interfaces 4-11

Serial Port Interface 4-12

Parallel Port Interface 4-14

Ethernet Interface 4-15

SCSI Interface 4-16

SCSI Termination 4-16

Local Resources 4-16

Programmable Tick Timers 4-17

Watchdog Timer 4-17

Software-Programmable Hardware Interrupts 4-17

Local Bus Time-out4-18

Module IdentiÞcation 4-18

Timing Performance 4-18

Local Bus to DRAM Cycle Times 4-18

ROM Cycle Times 4-19

SCSI Transfers 4-19

LAN DMA Transfers 4-20

Remote Status and Control 4-20

Introduction A-1

Levels of Implementation A-3

Signal Adaptations A-4

Sample ConÞgurations A-4

Proper Grounding A-7

Overview of M68000 Firmware B-1

Description of 177Bug B-1

177Bug Implementation B-3

Autoboot B-3

ROMboot B-5

Network Boot B-6

Restarting the System B-7

Reset B-8

Abort B-8

Break B-9

SYSFAIL* Assertion/Negation B-10

MPU Clock Speed Calculation B-10

Memory Requirements B-11

Terminal Input/Output Control B-12

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Image 8
Motorola MVME177 manual