AM186ER-25KCW AMD [Advanced Micro Devices], AM186ER-25KCW Datasheet - Page 108

• Manufacturer Part Number: AM186ER-25KCW
• Description: High-Performance, 80C186- and 80C188-Compatible, 16-Bit Embedded Microcontrollers with RAM
• Manufacturer: AMD [Advanced Micro Devices]

DC characteristics, 60
demonstration board products, 13
DEN/PIO5, 31
description, 1
direct memory access, 54
DMA
documentation
DRQ1–DRQ0, 32
DT/R/PIO4, 32
emulator and debug modes, 52
external source clock, 45
features
four-pin interface, 57
functional description, 40
GND, 32
Index-2
functional, 40
Am186ER maximum transfer rates, 55
asynchronous serial port transfers, 55
channel control registers, 55–56
operation, 55
priority, 55–56
transfers through serial port, 56
unit block diagram, 56
See customer support.
internal memory disable, 52
show read enable, 52
3.3-V operation with 5-V-tolerant I/O, 14
available native development tools, applications, and
enhanced bus interface, 1
enhanced functionality, 1, 14
enhanced integrated peripherals, 1
enhanced performance, 14
faster access to memory and clock input modes, 1
integrated RAM, 14
memory integration, 1
software-compatible, 1
x86 software compatibility, 14
system software, 1
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Am186™CC Communications Controller Data Sheet
HLDA, 32
HOLD, 32
hotline and world wide web support, 13
I/O circuitry, 59
I/O space, 40
industrial operating ranges, 60
initialization and processor reset, 48
input/output circuitry, 59
INT0, 32
INT1/SELECT, 32
INT2/INTA0/PIO31, 33
INT3/INTA1/IRQ, 33
INT4/PIO30, 33
interaction with external RAM, 52
internal memory, 52
internal memory disable, 52
internal RAM show read cycle waveform, 77
interrupt acknowledge cycle (25 and 33 MHz), 87
interrupt acknowledge cycle (40 and 50 MHz), 88
interrupt acknowledge cycle waveforms, 89
interrupt control unit, 53
junction temperature calculation, 62
LCS/ONCE0, 33
literature
logic diagram
low memory chip select, 51
low-voltage operation, 57
low-voltage standard, 59
programming, 53
ARDY and SRDY synchronization, 49
See customer support.
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