AM186ED AMD [Advanced Micro Devices], AM186ED Datasheet - Page 2

• Manufacturer Part Number: AM186ED
• Description: High Performance, 80C186- and 80C188-Compatible, 16-Bit Embedded Microcontrollers
• Manufacturer: AMD [Advanced Micro Devices]

S6/CLKDIV2
Am186ED/EDLV MICROCONTROLLERS BLOCK DIAGRAM
Notes:
information on shared functions.
** RTS1/RTR1 and CTS1/ENRX1 are multiplexed with PCS3 and PCS2, respectively. See the pin descriptions beginning on
page 21.
2
S2/BTSEL
*All PIO signals are shared with other physical pins. See the pin descriptions beginning on page 21 and Table 2 on page 29 for
DEN/DS
RES
S1–S0
ARDY
SRDY
HOLD
HLDA
DT/R
GND
V
UZI
CC
A19–A0
AD15–AD0
X1
CLKOUTA
Management
Timer (WDT)
Clock and
Registers
Watchdog
Registers
X2
Control
Control
Power
Unit
CLKOUTB
Interface
ALE
Unit
Bus
BHE/ADEN
INT3/INTA1/IRQ
INT6–INT4**
WR
Refresh
WLB
Control
Unit
WHB
Control Unit
P R E L I M I N A R Y
Registers
RD
Interrupt
Control
INT2/INTA0/PWD**
LCS/ONCE0/RAS0
Execution
Am186ED/EDLV Microcontrollers
INT1/SELECT
Unit
INT0
NMI
MCS3/RAS1
Demod-
(PWD)
Width
ulator
Pulse
MCS2/LCAS
PWD**
MCS1/UCAS
Control
DRAM
Unit
TMRIN0
Max Count B
Chip-Select
MCS0
Registers
0
TMROUT0 TMROUT1
Timer Control
Max Count A
16-Bit Count
Unit
Registers
Registers
Registers
Control
Registers
UCS/ONCE1
Control
Unit
PCS3–PCS0**
1
TMRIN1
PCS5/A1
PCS6/A2
2
DRQ0/INT5** DRQ1/INT6**
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
1
Unit
PIO
RXD0
CTS0/ENRX0
TXD1
RXD1
RTS1/RTR1**
CTS1/ENRX1**
TXD0
RTS0/RTR0
PIO31–
PIO0*