83C196EA Intel Corporation, 83C196EA Datasheet - Page 31

• Manufacturer Part Number: 83C196EA
• Description: CHMOS 16-BIT MICROCONTROLLER
• Manufacturer: Intel Corporation

6.4 Deferred Bus Timing Mode
Deferred Bus Cycle Mode: This bus mode (enabled
by setting CCB1.5) reduces bus contention when
using the 83C196EA in demultiplexed mode with
ADVANCE INFORMATION
BHE#, INST
CLKOUT
AD15:0
AD15:0
(write)
A20:0
(read)
CS x #
WR#
RD#
ALE
Address Out
83C196EA CHMOS 16-BIT MICROCONTROLLER — AUTOMOTIVE
Figure 8. Deferred Bus Mode Timing Diagram
Data Out
Data In
T
LHLH
T
+ 2t
RHLH
T
AVWL
+ 2t
+ 2t
Valid
slow memories. As shown in Figure 8, a delay of 2t
occurs in the first bus cycle following a chip-select
output change and the first write cycle following a
read cycle
Data Out
.
T
T
WHLH
AVRL
T
AVDV
+ 2t
+ 2t
+ 2t
Valid
Data Out
Data In
A3246-02
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