Z80230 Datasheet, PDF (5/12 Pages) Zilog, Inc. – ESCC™ ENHANCED SERIAL COMMUNICATION CONTROLLER

AC CHARACTERISTICS
Z80230 Read and Write Timing Diagrams
/AS
/CS0
CS1
/INTACK
R//W
Read
R//W
Write
/DS
AD7-AD0
Write
AD7-AD0
Read
/W//REQ
Wait
/W//REQ
Request
/DTR//REQ
Request
/INT
PCLK
1
3
4
5
7
8
9
11
12
13
15
16
17
15
16
19
21
22
24
25
26
2
6
14
10
10
18
20
23
27
28
40
41
42
43
44
Z80230 Read/Write Timing Diagram
5