AM186EM Datasheet, PDF (92/98 Pages) List of Unclassifed Manufacturers – MICROCONTROLLER BLOCK DIAGRAM

PRELIMINARY
Bus Hold Waveforms—Entering
Case 1
t_i
t_i
t_i
Case 2
t₄
t_i
t_i
CLKOUTA
58
HOLD
HLDA
AD15–AD0, DEN
A19–A0, S6, RD,
WR, BHE,
DT/R, S2–S0
WHB, WLB
Bus Hold Waveforms—Leaving
Case 1
t_i
Case 2
t_i
62
15
63
t_i
t_i
t₁
t_i
t₄
t₁
CLKOUTA
HOLD
HLDA
AD15–AD0, DEN
A19–A0, S6, RD,
WR, BHE,
DT/R, S2–S0
WHB, WLB
58
62
5
64
92
Am186/188EM and Am186/188EMLV Microcontrollers