MC68EC000 Motorola, MC68EC000 Datasheet - Page 134

• Manufacturer Part Number: MC68EC000
• Description: Core Processor (SCM 68000)
• Manufacturer: Motorola

MOTOROLA
ASYNCHRONOUS
DSB/LDSB/UDSB
HALTIB/RESETIB
NOTES:
unless otherwise noted. The voltage swing through this range should start outside and pass through the
range such that the rise or fall is linear between 0.2 V
2. Because of loading variations, RWB may be valid after ASB even though both are initiated by the rising edge
of S2 (specification #20A).
1. Timing measurements are referenced to and from a low voltage of 0.2 V
BERRB/BRB
DATA OUT
FC2–FC0
(NOTE 2)
(NOTE 1)
DTACKB
INPUTS
A31–A0
CLK
RWB
ASB
I
13
Freescale Semiconductor, Inc.
Figure 7-3. Write Cycle Timing Diagram
S0
EC000 CORE PROCESSOR USER’S MANUAL
For More Information On This Product,
15
17
7
18
S1
9
8
11A
32
6A
6
11
21A
21
47
55
23
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S2
26
S3
20
20A
48
56
22
S4
47
14
9
DD
S5
32
and 0.8 V
47
47
47
14A
S6
DD
S7
.
DD
and a high voltage of 0.8 V
12
30
28A
28
53
25
Electrical Characteristics
DD
,
7-5