AM186 datasheet(107/112 Pages) AMD

107 / 112 page

Am186™CC Communications Controller Data Sheet

Index-1

INDEX

A17/PIO7, 30

A18/PIO8, 30

A19/PIO9, 30

absolute maximum ratings, 60

active mode

clock waveforms, 95

AD15–AD8, 30

AD7–AD0, 30

address bus

Am186ER

disable in effect, 42

normal operation, 42

Am188ER

disable in effect, 43

ALE, 31

alphabetic PIO pin assignments, 36

ambient temperatures

ambient, 62

PQFP with four-to-six layer board, 65

PQFP with two-layer board, 63

TQFP with four-to-six layer boards, 66

TQFP with two-layer board, 64

AO15–AO8, 30

application considerations, 14

ARDY, 31

asynchronous ready waveforms, 97

asynchronous serial port, 56

BHE/ADEN, 31

block diagram

Am186ER, 2

Am188ER, 3

bus cycle encoding, 37

bus hold waveforms

entering, 101

leaving, 101

bus interface unit, 41

bus operation, 41

byte write enables, 41

chip-select

low memory, 51

overlap, 51

timing, 49

unit, 49

upper memory, 51

chip-selects

midrange memory, 51

peripheral, 52

CLKOUTA, 31

CLKOUTB, 31

clock (25 MHz), 92

clock (33 MHz), 93

clock (40 and 50 MHz), 94

clock and power management, 44

clock frequencies

minimum and maximum, 44

clock generation, 14

clock organization, 48

clock source

crystal driven, 45

clock waveforms

active mode, 95

power-save mode, 95

clocking modes, 39

commercial operating ranges, 60

comparison

Am186ER and 80C186 microcontrollers, 15

crystal

selecting, 45

crystal-driven clock source, 45

customer support, 13

documentation and literature, 13

hotline and web, 13

literature ordering, 13

third-party development support products, 13

web home page, 13

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