AM188ES-40KCW Datasheet, PDF (34/102 Pages) Advanced Micro Devices – High Performance, 80C186-/80C188-Compatible and 80L186-/80L188-Compatible, 16-Bit Embedded Microcontrollers

PRELIMINARY
Table 2. Numeric PIO Pin Designations
Table 3. Alphabetic PIO Pin Designations
PIO No Associated Pin Power-On Reset Status
0 TMRIN1
Input with pullup
1 TMROUT1
Input with pulldown
2 PCS6/A2
Input with pullup
3 PCS5/A1
4 DT/R
5 DEN/DS
6 SRDY
7⁽¹⁾ A17
8⁽¹⁾ A18
9⁽¹⁾ A19
Input with pullup
Normal operation⁽³⁾
Normal operation⁽³⁾
Normal operation⁽⁴⁾
Normal operation⁽³⁾
Normal operation⁽³⁾
Normal operation⁽³⁾
10 TMROUT0
Input with pulldown
11 TMRIN0
Input with pullup
12 DRQ0/INT5
Input with pullup
13 DRQ1/INT6
Input with pullup
14 MCS0
Input with pullup
15 MCS1
Input with pullup
16 PCS0
Input with pullup
17 PCS1
Input with pullup
18 PCS2/CTS1/ENRX1 Input with pullup
19 PCS3/RTS1/RTR1 Input with pullup
20 RTS0/RTR0
Input with pullup
21 CTS0/ENRX0
Input with pullup
22 TXD0
Input with pullup
23 RXD0
Input with pullup
24 MCS2
Input with pullup
25 MCS3/RFSH
26^(1,2) UZI
Input with pullup
Input with pullup
27 TXD1
Input with pullup
28 RXD1
Input with pullup
29^(1,2) S6/LOCK/CLKDIV2 Input with pullup
30 INT4
Input with pullup
31 INT2/INTA0/PWD Input with pullup
Associated Pin
A17⁽¹⁾
A18⁽¹⁾
A19⁽¹⁾
PIO No
7
8
9
Power-On Reset Status
Normal operation⁽³⁾
Normal operation⁽³⁾
Normal operation⁽³⁾
CTS0/ENRX0
DEN/DS
21 Input with pullup
5
Normal operation⁽³⁾
DRQ0/INT5
12 Input with pullup
DRQ1/INT6
DT/R
13 Input with pullup
4
Normal operation⁽³⁾
INT2/INTA0/PWD
31 Input with pullup
INT4
30 Input with pullup
MCS0
14 Input with pullup
MCS1
15 Input with pullup
MCS2
24 Input with pullup
MCS3/RFSH
25 Input with pullup
PCS0
16 Input with pullup
PCS1
17 Input with pullup
PCS2/CTS1/ENRX1
18 Input with pullup
PCS3/RTS1/RTR1
19 Input with pullup
PCS5/A1
3 Input with pullup
PCS6/A2
2 Input with pullup
RTS0/RTR0
20 Input with pullup
RXD0
23 Input with pullup
RXD1
28 Input with pullup
S6/LOCK/CLKDIV2^(1,2) 29 Input with pullup
SRDY
6
Normal operation⁽⁴⁾
TMRIN0
11 Input with pullup
TMRIN1
0 Input with pullup
TMROUT0
10 Input with pulldown
TMROUT1
1 Input with pulldown
TXD0
22 Input with pullup
TXD1
UZI^(1,2)
27 Input with pullup
26 Input with pullup
Notes:
The following notes apply to both tables.
1. These pins are used by emulators. (Emulators also use S2–S0, RES, NMI, CLKOUTA, BHE, ALE, AD15–AD0,
and A16–A0.)
2. These pins revert to normal operation if BHE/ADEN (186) or RFSH2/ADEN (188) is held Low during power-on
reset.
3. When used as a PIO, input with pullup option available.
4. When used as a PIO, input with pulldown option available.
34
Am186/188ES and Am186/188ESLV Microcontrollers