AM186ED Datasheet, PDF (20/88 Pages) Advanced Micro Devices – High Performance, 80C186- and 80C188-Compatible, 16-Bit Embedded Microcontrollers

PRELIMINARY
LOGIC SYMBOL—Am186ED/EDLV MICROCONTROLLERS
Clocks
X1
X2
CLKOUTA
CLKOUTB
Address and
Address/Data Buses
* ^{20 A19–A0}
16 AD15–AD0
*
S6/CLKDIV2
*
UZI
2
Bus Control _*
*
*
D^*
Timer Control ^*
*
*
ALE
S2/BTSEL
S1–S0
HOLD
HLDA
RD
WR
DT/R
DEN/DS
R^ARDY
SRDY
BHE/ADEN
WHB
WLB
TMRIN0
TMROUT0
TMRIN1
TMROUT1
Programmable
I/O Control
32
shared
**
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
*
LCS/ONCE0/RAS0
MCS3/RAS1
*
MCS2/LCAS
*
F_MCS1/UCAS
*
MCS0
*
A^UCS/ONCE1
T^{Memory and}
Peripheral Control
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 21 and
Table 2 on page 29 for information on shared function.
** All PIO signals are shared with other physical pins.
20
Am186ED/EDLV Microcontrollers