Performance Computer PT-VME161 User Manual page 10

Table of Contents
The differences between the PT-VME161 and the VME151
SCV64 ........................................................................................................................ 90
Differences: ........................................................................................................... 90
68060 Versus 68040 .................................................................................................. 91
The differences between the PT-VME151A and the VME151
Renamed Registers.................................................................................................... 92
New Devices............................................................................................................... 92
DRAM Sizing .............................................................................................................. 92
SRAM Access............................................................................................................. 93
PT-VME151A Differences From VME131/141
DARF64 uses 68040 mode ........................................................................................ 94
SCSI Controller differences ........................................................................................ 94
Effects of 68040 vs. 68030 ......................................................................................... 94
Cacheability and Serialization ............................................................................... 94
68040 Cache Control Registers ............................................................................ 95
68040 Cache Clearing .......................................................................................... 96
68040 Exception Processing................................................................................. 96
PT-VME151A Control Register Differences ............................................................... 96
SCV64 Overview
Functional Description ................................................................................................ 98
BI-mode................................................................................................................. 98
Location Monitor.................................................................................................... 99
VMEbus Master Memory Map............................................................................... 99
Master VMEbus Accesses ................................................................................... 101
Slave VMEbus Accesses ..................................................................................... 102
AVICS Application Notes
Local Interrupts.......................................................................................................... 104
Example: .............................................................................................................. 104
Setting Up the Master Bus Memory Map................................................................... 105
Example: .............................................................................................................. 105
Setting Up A24/A32 Slave Images on the Bus .......................................................... 105
Example A:........................................................................................................... 106
Example B:........................................................................................................... 107
Generating VMEbus Interrupts .................................................................................. 108
Example: .............................................................................................................. 108
Receiving VMEbus Interrupts .................................................................................... 108
Example: .............................................................................................................. 108
Initiating a DMA Transfer........................................................................................... 109
Example: .............................................................................................................. 109
VMEbus Address Modifiers
Section 8 SCHEMATICS
x Extensible Single Board Computer/Controller User's Manual
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