MC68020 Motorola, MC68020 Datasheet - Page 285

• Manufacturer Part Number: MC68020
• Description: (MC68020 / MC68EC020) MICROPROCESSORS USERS MANUAL
• Manufacturer: Motorola

MOTOROLA
ASYNCHRONOUS
*For the MC68EC020, A23ÐA0.
**This signal does not apply to the MC68EC020.
NOTE:
Figure 10-3. Read Cycle Timing Diagram
SIZ1–SIZ0
FC2–FC0
Timing measurements are referenced to and from a low voltage of 0.8 V
and a high voltage of 2.0 V, unless otherwise noted. The voltage swing
through this range should start outside and pass through the range such
that the rise or fall will be linear between 0.8 V and 2.0 V.
*A31–A0
DSACK0
DSACK1
INPUTS
D31–D0
**DBEN
**ECS
BERR
HALT
OCS
CLK
R/W
ALL
DS
AS
18
6A
10A
10
21
M68020 USERÕS MANUAL
11
S0
40
S1
47A
6
31A
S2
9
12A
S3
14
31
48
27
46
45
47B
12
S4
30
41
17
S5
27A
29
16
29A
28
13
8
7
FIGURE 10-3
MC68020UM
10-11