HD64570 HITACHI [Hitachi Semiconductor], HD64570 Datasheet - Page 115

• Manufacturer Part Number: HD64570
• Description: Serial Communications Adaptor
• Manufacturer: HITACHI [Hitachi Semiconductor]

INT
INTA
CLK (CPU
mode 0)
CLK (CPU
modes 1, 2, 3)
WAIT
D to D
(Out)
0
INTA
INT
CLK (CPU
mode 0)
CLK (CPU
modes 1, 2, 3)
WAIT
D to D
(Out)
0
7
7
Figure 4.3 Timing Sequence of Double Acknowledge Cycle
Figure 4.2 Timing Sequence of Single Acknowledge Cycle
First interrupt
acknowledge cycle
Interrupt
acknowledge cycle
Vector address
Rev. 0, 07/98, page 99 of 453
Second interrupt
acknowledge cycle
Vector address