AM188ES-40KCW Datasheet, PDF (85/102 Pages) Advanced Micro Devices – High Performance, 80C186-/80C188-Compatible and 80L186-/80L188-Compatible, 16-Bit Embedded Microcontrollers

PRELIMINARY
Interrupt Acknowledge Cycle Waveforms
CLKOUTA
A19–A0
S6/LOCK
AD15–AD0*,
AD7–AD0**
AO15–AO8**
ALE
BHE*
INTA1–INTA0
DEN
DT/R
S2–S0
t₁
t₂
t₃
t₄
t_W
68
S6
LOCK
12
15
Address
23
9
10
11
Address
7
BHE
20
22
19 ^(c)
22
3
Status
S6
1
Ptr
8
2 ^(b)
4
31
21
4 ^(a)
22 ^(d)
Notes:
* _{Am186ES microcontroller only}
** _{Am188ES microcontroller only}
a The status bits become inactive in the state preceding t₄.
b The data hold time lasts only until the interrupt acknowledge signal deasserts, even if the interrupt acknowledge
transition occurs prior to t_CLDX (min).
c This parameter applies for an interrupt acknowledge cycle that follows a write cycle.
d If followed by a write cycle, this change occurs in the state preceding that write cycle.
Am186/188ES and Am186/188ESLV Microcontrollers
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