Processor Users Manual

MOTOROLA Contents ix
CONTENTS
Paragraph
Number
Title
Page
Number
External Signals
6.1 Functional Pinout .................................................................................................6-1
6.2 Signal Descriptions ..............................................................................................6-2
Chapter 7
60x Signals
7.1 Signal Configuration ............................................................................................7-2
7.2 Signal Descriptions ..............................................................................................7-3
7.2.1 Address Bus Arbitration Signals......................................................................7-3
7.2.1.1 Bus Request (BR)ÑOutput .........................................................................7-3
7.2.1.1.1 Address Bus Request (BR)ÑOutput .......................................................7-3
7.2.1.1.2 Address Bus Request (BR)ÑInput..........................................................7-4
7.2.1.2 Bus Grant (BG) ............................................................................................7-4
7.2.1.2.1 Bus Grant (BG)ÑInput............................................................................7-4
7.2.1.2.2 Bus Grant (BG)ÑOutput.........................................................................7-5
7.2.1.3 Address Bus Busy (ABB) ............................................................................7-5
7.2.1.3.1 Address Bus Busy (ABB)ÑOutput .........................................................7-5
7.2.1.3.2 Address Bus Busy (ABB)ÑInput............................................................7-6
7.2.2 Address Transfer Start Signal ..........................................................................7-6
7.2.2.1 Transfer Start (TS) .......................................................................................7-6
7.2.2.1.1 Transfer Start (TS)ÑOutput ....................................................................7-6
7.2.2.2 Transfer Start (TS)ÑInput...........................................................................7-6
7.2.3 Address Transfer Signals .................................................................................7-7
7.2.3.1 Address Bus (A[0Ð31]) ................................................................................7-7
7.2.3.1.1 Address Bus (A[0Ð31])ÑOutput.............................................................7-7
7.2.3.1.2 Address Bus (A[0Ð31])ÑInput................................................................7-7
7.2.4 Address Transfer Attribute Signals..................................................................7-7
7.2.4.1 Transfer Type (TT[0Ð4])..............................................................................7-8
7.2.4.1.1 Transfer Type (TT[0Ð4])ÑOutput...........................................................7-8
7.2.4.1.2 Transfer Type (TT[0Ð4])ÑInput .............................................................7-8
7.2.4.2 Transfer Size (TSIZ[0Ð3]) ...........................................................................7-8
7.2.4.3 Transfer Burst (TBST) .................................................................................7-8
7.2.4.4 Global (GBL) ...............................................................................................7-9
7.2.4.4.1 Global (GBL)ÑOutput............................................................................7-9
7.2.4.4.2 Global (GBL)ÑInput...............................................................................7-9
7.2.4.5 Caching-Inhibited (CI)ÑOutput..................................................................7-9
7.2.4.6 Write-Through (WT)ÑOutput ....................................................................7-9
7.2.5 Address Transfer Termination Signals...........................................................7-10
7.2.5.1 Address Acknowledge (AACK) ................................................................7-10
7.2.5.1.1 Address Acknowledge (AACK)ÑOutput .............................................7-10
7.2.5.1.2 Address Acknowledge (AACK)ÑInput................................................7-10