AM186 datasheet(100/112 Pages) AMD

Part #	AM186

Description	High-Performance, 80C186- and 80C188-Compatible, 16-Bit Embedded Microcontrollers with RAM

PDF	112 Pages

Scroll/Zoom	100%

Manufacturer	AMD [Advanced Micro Devices]

Direct Link	http://www.amd.com

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100 / 112 page

100

Am186TMER and Am188TMER Microcontrollers Data Sheet

DRAF

Reset Waveforms

Signals Related to Reset Waveforms

RES

CLKOUTA

Note:

RES must be held Low for 1 ms during power-up to ensure proper device initialization. Activating the PLL will require 1 ms

to achieve a stable clock.

BHE/ADEN*,

RFSH2/ADEN*,

S6/CLKSEL1* **,

UZI/CLKSEL2**

S1/IMDIS*,

and S0/SREN*

RES

CLKOUTA

AD15–AD0 (186)

AO15–AO8,

AD7–AD0 (188)

Notes:

* Because BHE, RFSH2, S6, UZI, S1, and S0 are not driven for 6.5 clocks after reset, their alternate functions can be

asserted with external pulldown resistors.

** In Divide by Two mode and Times One mode, S6/CLKSEL1 and UZI/CLKSEL2 must be held for 3 clock cycles after

reset negates.

***In Times Four mode, S6/CLKSEL1 and UZI/CLKSEL2 must be held for 5 clock cycles after reset negates.

S6/CLKSEL1***,

UZI/CLKSEL2***

Three-State

Divide by Two and Times One Modes

Times Four Mode

Three-State

AM186 Datasheet(PDF) 100 Page - Advanced Micro Devices