AM188ES-40KCW Datasheet, PDF (70/102 Pages) Advanced Micro Devices – High Performance, 80C186-/80C188-Compatible and 80L186-/80L188-Compatible, 16-Bit Embedded Microcontrollers

Read Cycle Waveforms
PRELIMINARY
CLKOUTA
A19–A0
S6/LOCK
AD15–AD0*,
AD7–AD0**
AO15–AO8**
ALE
RD
BHE*
LCS, UCS
MCS1–MCS0,
PCS6–PCS5,
PCS3–PCS0
DEN, DS
DT/R
S2–S0
UZI
t₁
t₂
t₃
t₄
t_W
66
68
S6
14
LOCK
Address
23
9
11
10
12
5
67
Address
S6
6
1
Data
Address
8
2
15
24
25
13
26
BHE
29
59
28
27
18
16
99
17
19
22 ^***
3
20
4
Status
21
41
*** ₂₂
Notes:
*
Am186ES microcontroller only
** _{Am188ES microcontroller only}
*** Changes in t phase preceding next bus cycle if followed by read, INTA, or halt.
70
Am186/188ES and Am186/188ESLV Microcontrollers