AM188ES-40KCW Datasheet, PDF (25/102 Pages) Advanced Micro Devices – High Performance, 80C186-/80C188-Compatible and 80L186-/80L188-Compatible, 16-Bit Embedded Microcontrollers

PRELIMINARY
LOGIC SYMBOL—Am186ES MICROCONTROLLER
Clocks
X1
X2
CLKOUTA
CLKOUTB
Address and
Address/Data Buses
* 20 _A19–A0
16 AD15–AD0
*
S6/LOCK/CLKDIV2
*
UZI
3
Bus Control _*
*
*
ALE
S2–S0
HOLD
HLDA
RD
WR
DT/R
DEN/DS
ARDY
SRDY
BHE/ADEN
WHB
WLB
RES
DRQ1/INT6
DRQ0/INT5
INT4
INT3/INTA1/IRQ
INT2/INTA0/PWD
INT1/SELECT
INT0
NMI
*
Reset Control and
* ^{Interrupt Service}
PCS6/A2
PCS5/A1
PCS3/RTS1/RTR1
PCS2/CTS1/ENRX1
PCS1–PCS0 ²
LCS/ONCE0
MCS3/RFSH
3
MCS2–MCS0
UCS/ONCE1
*
*
*
*
* Memory and
Peripheral Control
*
*
DRQ1/INT6
DRQ0/INT5
*
DMA Control
*
*
*
Timer Control
*
*
TMRIN0
TMROUT0
TMRIN1
TMROUT1
Programmable
I/O Control
32
shared
**
PIO32–PIO0
TXD0
RXD0
CTS0/ENRX0
RTS0/RTR0
TXD1
RXD1
PCS2/CTS1/ENRX1
PCS3/RTS1/RTR1
*
*
*
* _Asynchronous
* ^{Serial Port Control}
*
*
*
Notes:
* These signals are the normal function of a pin that can be used as a PIO. See Pin Descriptions beginning on page 27 and
Table 2 on page 34 for information on shared function.
** All PIO signals are shared with other physical pins.
Am186/188ES and Am186/188ESLV Microcontrollers
25