AM186ES Advanced Micro Devices, AM186ES Datasheet - Page 46

• Manufacturer Part Number: AM186ES
• Description: microcontrollers provide a low-cost/ high-performance solution for embedded system designers who wish to use the x86 architecture.
• Manufacturer: Advanced Micro Devices

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