Commodore Amiga A500 Technical Reference Manual page 41

Timing Requirements for PIC
TIMING REQUIREMENTS FOR PIC AS SLAVE (RD & WR CYCLES)
Num
1
2
3 AS* low to XRDY low (to insert wait)
4 Read Data Valid to local 7M low (S7)
5
6
TIMING REQUIREMENTS FOR PIC AS MASTER (RD & WR CYCLES)
Num
1
2
3 7M high (S4) to Data Valid Wr Cycle
Timing to Backplane
Num
1
2
Timing to PIC
Num
1
2 Data from 7M High(S4) on Wr to PIC
Num
1 Valid Data setup to Local 7M low(S7)
Characteristic
AS* low to SLAVE* Low
AS* high to SLAVE* high
AS* low to OVR* low
AS* high to OVR* high
Characteristic
7M high(S2) to AS* low
Address 23-1 Valid to AS* low
TIMING TO BACKPLANE
Characteristic
AS* Low to CDAC Low (Setup)
AS* High to CDAC High (Setup)
TIMING TO PIC (PIC IN SLAVE MODE)
Characteristic
Valid Address to AS* Low
TIMING TO PIC (PIC IN MASTER MODE)
Characteristic
38
Min Max Unit
0 35 ns
0 50 ns
0 60 ns
60 ns
0 50 ns
0 50 ns
Min Max Unit
0 67 ns
30 ns
0 ns
Min Max Unit
20
ns
20
ns
Min Max Unit
10 ns
35 ns
Min Max Unit
15 ns