AM188ES-40KCW Datasheet, PDF (26/102 Pages) Advanced Micro Devices – High Performance, 80C186-/80C188-Compatible and 80L186-/80L188-Compatible, 16-Bit Embedded Microcontrollers

PRELIMINARY
LOGIC SYMBOL—Am188ES MICROCONTROLLER
Clocks
X1
X2
CLKOUTA
CLKOUTB
Address and
Address/Data Buses
* 20 A19–A0
8 _{AO15–AO8}
8 AD7–AD0
*
S6/LOCK/CLKDIV2
*
UZI
Bus Control
3
*
*
*
ALE
S2–S0
HOLD
HLDA
RD
WR
DT/R
DEN/DS
ARDY
SRDY
RFSH2/ADEN
WB
*
*
Timer Control
*
*
TMRIN0
TMROUT0
TMRIN1
TMROUT1
32
Programmable
shared
I/O Control ^**
PIO32–PIO0
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 _{* Memory and}
LCS/ONCE0
Peripheral Control
MCS3/RFSH
*
3
MCS2–MCS0
*
UCS/ONCE1
DRQ1/INT6
DRQ0/INT5
*
DMA Control
*
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.
26
Am186/188ES and Am186/188ESLV Microcontrollers