CD1865 Datasheet, PDF (132/150 Pages) Intel Corporation – Intelligent Eight-Channel Communications Controller

CD1865 — Intelligent Eight-Channel Communications Controller
Figure 32. Clocked Bus Interface Service Acknowledgment Cycle,
Motorola^-Style Handshake
CD1865
CLOCK
t
DS*
5
t
8
CS*
t
7
R/W*
ADDRESS DON’T CARE
READ DATA
DTACK*
ACKIN*
t
2
t
19
t
3
t
8
NEW CYCLE MAY BEGIN
t
10
VALID
t
11
t
20
UNDEFINED
t
t
25
24
DON’T CARE
t
23
VALID
t
28
t
t
26
13
ACKOUT*
t
21
t
22
132
Datasheet