
iv
MPC105 PCIB/MC User’s Manual
MOTOROLA
CONTENTS
Paragraph
Number
Title
Page
Number
2.2.1.4
2.2.1.5
2.2.1.5.1
2.2.1.5.2
2.2.1.6
2.2.1.6.1
2.2.1.6.2
2.2.1.7
2.2.1.7.1
2.2.1.7.2
2.2.1.8
2.2.1.8.1
2.2.1.8.2
2.2.1.9
2.2.1.9.1
2.2.1.9.2
2.2.1.10
2.2.1.10.1
2.2.1.10.2
2.2.1.11
2.2.1.12
2.2.1.12.1
2.2.1.12.2
2.2.1.13
2.2.1.14
2.2.1.15
2.2.1.16
2.2.1.16.1
2.2.1.16.2
2.2.1.17
2.2.2
2.2.2.1
2.2.2.1.1
2.2.2.1.2
2.2.2.1.3
2.2.2.1.4
Extended Address Transfer Start (XATS)—Input ......................................2-4
Address Bus (A0–A31)................................................................................2-5
Address Bus (A0–A31)—Output ............................................................2-5
Address Bus (A0–A31)—Input...............................................................2-5
Transfer Type (TT0–TT4)...........................................................................2-5
Transfer Type (TT0–TT4)—Output........................................................2-5
Transfer Type (TT0–TT4)—Input...........................................................2-6
Transfer Size (TSIZ0–TSIZ2) .....................................................................2-6
Transfer Size (TSIZ0–TSIZ2)—Output..................................................2-6
Transfer Size (TSIZ0–TSIZ2)—Input.....................................................2-6
Transfer Burst (TBST).................................................................................2-6
Transfer Burst (TBST)—Output..............................................................2-6
Transfer Burst (TBST)—Input................................................................2-7
Address Acknowledge (AACK)..................................................................2-7
Address Acknowledge (AACK)—Output...............................................2-7
Address Acknowledge (AACK)—Input..................................................2-7
Address Retry (ARTRY).............................................................................2-8
Address Retry (ARTRY)—Output..........................................................2-8
Address Retry (ARTRY)—Input.............................................................2-8
Data Bus Grant 0 (DBG0)—Output............................................................2-8
Data Bus (DH0–DH31, DL0–DL31)...........................................................2-9
Data Bus (DH0–DH31, DL0–DL31)—Output........................................2-9
Data Bus (DH0–DH31, DL0–DL31)—Input..........................................2-9
Write-Through (WT)—Input/Output.........................................................2-10
Caching-Inhibited (CI)—Input/Output......................................................2-10
Global (GBL)—Input/Output....................................................................2-10
Transfer Acknowledge (TA)......................................................................2-10
Transfer Acknowledge (TA)—Output ..................................................2-10
Transfer Acknowledge (TA)—Input.....................................................2-11
Transfer Error Acknowledge (TEA)—Output...........................................2-11
Secondary Cache/Processor Interface Signals...............................................2-12
Secondary (L2) Cache Signals...................................................................2-12
Address Strobe/Data Address Latch Enable (ADS/DALE)—Output...2-12
Bus Address Advance/Burst Address 1 (BAA/BA1)—Output.............2-13
Data RAM Output Enable (DOE)—Output ..........................................2-13
Data RAM Write Enable (FNR/DWE0, DWE/DWE1, DWE2,
CKO/DWE3, DWE4–DWE6, CKE/DWE7)—Output..........................2-13
Hit (HIT)—Input ...................................................................................2-14
Tag Address Latch Enable/Burst Address 0 (TALE/BA0)—Output....2-14
Tag Address Latch Output Enable (TALOE)—Output.........................2-14
Tag Write Enable (TWE)—Output .......................................................2-15
Tag Valid (TV)—Output.......................................................................2-15
Dirty In (DIRTY_IN/BR1)—Input .......................................................2-15
2.2.2.1.5
2.2.2.1.6
2.2.2.1.7
2.2.2.1.8
2.2.2.1.9
2.2.2.1.10