AM186ES Advanced Micro Devices, AM186ES Datasheet - Page 19

• 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

Figure 1-2
S6/LOCK/
CLKDIV2
DEN/DS
RES
S2–S0
GND
ARDY
SRDY
HOLD
HLDA
V
DT/R
CC
UZI
A19–A0
AO15–AO8
CLKOUTA
X1
Management
Timer (WDT)
Clock and
AD7–AD0
Registers
Watchdog
Registers
X2
Control
Am188ES Microcontroller Block Diagram
Notes:
** PWD, INT5, INT6, RTS1 / RTR1 , and CTS1 / ENRX1 are multiplexed with INT2/ INTA0 , DRQ0,
Control
Power
*All PIO signals are shared with other physical pins. See the pin descriptions in Chapter 3 and Table
Unit
CLKOUTB
Interface
3-1 on page 3-13 for information on shared functions.
DRQ1, PCS3 , and PCS2 respectively. See the pin descriptions in Chapter 3.
Bus
Unit
ALE
INT3/INTA1/IRQ
INT6–INT4**
RFSH2/ADEN
Refresh
Control
WR
Unit
Control Unit
WB
RD
INT2/INTA0**
Interrupt
Registers
Control
Execution
INT1/SELECT
Unit
INT0
Features and Performance
LCS/ONCE0
NMI
MCS3/RFSH
Demod-
Width
ulator
Pulse
PWD**
PSRAM
Control
MCS2–MCS0
Unit
TMRIN0
Max Count B
Chip-Select
UCS/ONCE1
Registers
0
TMROUT0 TMROUT1
Timer Control
Max Count A
16-Bit Count
Unit
Registers
Registers
Registers
Registers
Control
Control
PCS3–PCS0**
Unit
1
TMRIN1
PCS5/A1
PCS6/A2
2
DRQ0**
20-Bit Destination
Asynchronous
Asynchronous
20-Bit Source
16-Bit Count
Serial Port 0
Serial Port 1
0
Registers
Registers
Registers
Pointers
Pointers
Control
Control
DMA
Unit
DRQ1**
1
Unit
PIO
PIO31–PIO0*
TXD0
RXD0
RTS0/RTR0
CTS0/ENRX0
TXD1
RXD1
RTS1/RTR1**
CTS1/ENRX1**
1-5