
MOTOROLA
Contents
ix
CONTENTS
Paragraph
Number
Title
Page
Number
External Signals
6.1
6.2
Functional Pinout.................................................................................................6-1
Signal Descriptions ..............................................................................................6-2
Chapter 7
60x Signals
7.1
7.2
7.2.1
7.2.1.1
7.2.1.1.1
7.2.1.1.2
7.2.1.2
7.2.1.2.1
7.2.1.2.2
7.2.1.3
7.2.1.3.1
7.2.1.3.2
7.2.2
7.2.2.1
7.2.2.1.1
7.2.2.2
7.2.3
7.2.3.1
7.2.3.1.1
7.2.3.1.2
7.2.4
7.2.4.1
7.2.4.1.1
7.2.4.1.2
7.2.4.2
7.2.4.3
7.2.4.4
7.2.4.4.1
7.2.4.4.2
7.2.4.5
7.2.4.6
7.2.5
7.2.5.1
7.2.5.1.1
7.2.5.1.2
Signal Configuration............................................................................................7-2
Signal Descriptions ..............................................................................................7-3
Address Bus Arbitration Signals......................................................................7-3
Bus Request (BR)—Output .........................................................................7-3
Address Bus Request (BR)—Output.......................................................7-3
Address Bus Request (BR)—Input..........................................................7-4
Bus Grant (BG)............................................................................................7-4
Bus Grant (BG)—Input............................................................................7-4
Bus Grant (BG)—Output.........................................................................7-5
Address Bus Busy (ABB)............................................................................7-5
Address Bus Busy (ABB)—Output.........................................................7-5
Address Bus Busy (ABB)—Input............................................................7-6
Address Transfer Start Signal ..........................................................................7-6
Transfer Start (TS).......................................................................................7-6
Transfer Start (TS)—Output....................................................................7-6
Transfer Start (TS)—Input...........................................................................7-6
Address Transfer Signals .................................................................................7-7
Address Bus (A[0–31])................................................................................7-7
Address Bus (A[0–31])—Output.............................................................7-7
Address Bus (A[0–31])—Input................................................................7-7
Address Transfer Attribute Signals..................................................................7-7
Transfer Type (TT[0–4])..............................................................................7-8
Transfer Type (TT[0–4])—Output...........................................................7-8
Transfer Type (TT[0–4])—Input.............................................................7-8
Transfer Size (TSIZ[0–3]) ...........................................................................7-8
Transfer Burst (TBST).................................................................................7-8
Global (GBL)...............................................................................................7-9
Global (GBL)—Output............................................................................7-9
Global (GBL)—Input...............................................................................7-9
Caching-Inhibited (CI)—Output..................................................................7-9
Write-Through (WT)—Output ....................................................................7-9
Address Transfer Termination Signals...........................................................7-10
Address Acknowledge (AACK) ................................................................7-10
Address Acknowledge (AACK)—Output.............................................7-10
Address Acknowledge (AACK)—Input................................................7-10