AM8530H AMD [Advanced Micro Devices], AM8530H Datasheet - Page 166

• Manufacturer Part Number: AM8530H
• Description: Serial Communications Controller
• Manufacturer: AMD [Advanced Micro Devices]

SCC Application Notes
INTA
INTA
INTA
1
2
RESET
Q
T
2
INTA
RESET
1
186
= INTACK
INTA
INTA
125 ns
RD
Figure 7–8. Interrupt Acknowledge Timing Implementation
Q
T
2
1
T
Figure 7–7. Interrupt Acknowledge Timing
3
8 MHz 8086
D
CP
Figure A
8 x 125 = 1000 ns
74LS74
PRE
T
D
CP
4
Q
Q
6 x 200 = 1200 ns
CLR
Q
Q
T
1
1
1
T
INTA
1
1
8 MHz 8086
RESET
T
RD
186
1
INTA
D
CP
5 MHz 8086
8 MHz = 325
CLR
PR
T
2
Q
5 MHz 8086
2
Figure B
D
CP
74LS74
PRE
T
3
Q
Q
INTACK
AMD
T
4
INTA
7–17
2