Ziatech Corporation ZT 8809A, Operating Manual

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Specifications
CLOCK*
MCSYNC*
(2)
DATA
BUS
(3)
A0-A15
D0-D3
UNDETERMINED
VALID CASCADE #
FLOAT
T
1
tD36
tD37
tD38
tH18
tH13
tD18
T
2
T
3
T
4
T
1
T
2
T
3
T
4
INTAK*
tD19
tD18
tD19
tD9
tD20
tD9
D0-D3
UNDETERMINED
POINTER
IN
tS3
tD20
tH17
tD39
VALID CASCADE #
A0-A15
(3)
A0-A15
(4)
ZT 8808A ZT 8809A
ZT 88CT08A
SYMBOL PARAMETER
ZT88CT09A
MIN MAX MAX MAX MAX MIN MIN MIN
tD9
tD18
tD19
tD20
tD36
tD37
tD38
tD39
tH13
tH17
tH18
tS3 Delay from CLOCK* to Address 16-19
Delay from CLOCK * to INTAK* low
Delay from CLOCK* to INTAK* high
Delay from CLOCK* to Data Bus 3-State
Delay from INTAK* to Cascade from CPU
Delay from INTAK* to A0-A15 3-State
Delay from INTAK* to Cascade from PIC
Delay from INTAK* to A0-A15 driven
Interrupt vector hold from CLOCK*
Cascade hold after INTAK* low
Cascade hold after INTAK* high
Interrupt vector setup to CLOCK*
All times given in nanoseconds
1
4
4
55
6
2
6
37
118
43
43
35
379
55
1
4
4
55
6
7
6
27
68
43
43
35
379
55
0
0
0
61
6
7
0
46
119
50
44
35
386
61
20
0
0
0
61
6
7
0
36
75
50
44
35
386
61
20
Figure B–14. ZT 8809A Interrupt Timing.
B-29