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Difference between revisions of "amd/am186ex"
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{{amd title|Am186E}}
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{{amd title|Am186Ex}}
 
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| title            = AMD Am186Ex
 
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'''Am186E''' is a family of {{arch|16}} [[microcontrollers]] that incorporated the [[core name::Am186| ]]{{amd|Am186}} core along with some RAM and a number of other application-specific controllers.
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'''Am186Ex''' is a family of {{arch|16}} [[microcontrollers]] that incorporated the [[core name::Am186| ]]{{amd|Am186}} core along with a number of other application-specific features.
  
 
== Overview ==
 
== Overview ==
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With low-density [[SRAM]] (less than 4 Megabit) on the decline in the mid 1990s, the typical off-the-shelf setup would require 64K SRAM in a 2 x 32K setup to satisfy the 186's 16-bit external [[data bus]]. For the average system that would mean twice the general SRAM needed. AMD's introduced a series of [[microcontroller]]s that integrated 32K RAM on-die combined with their {{amd|Am186}} core fabricated on their new [[350 nm process]]. Later AMD introduced a number of other series which included various other peripheral controllers such as [[USB]] and communication controller.
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The Am186Ex is a family of microcontrollers that incorporated the {{amd|Am186}} core along with a number of units. AMD introduced a number of series including: '''Am186EM''', '''Am186ES''', '''Am186ER''', '''Am186ED'''.
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All MCUs include the following base features:
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* Single clock input
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* [[Interrupt Control Unit]]
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* General Purpose [[DMA]] (2 independent channels)
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* 3 x 16-bit timers
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* [[Watchdog Timer]]
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* [[UART]]
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* 32x General Purpose IO
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* [[Synchronous Serial Interface]]
  
 
== Members ==
 
== Members ==
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 +
=== Am186EM ===
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The '''Am186EM''' series was introduced in 1995 and included the base features only. Note that this MCU does not have a dedicated watchdog timer, instead timer 1 (from the 3 available timers) can be used a watchdog timer.
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 +
* 6 x external interrupts
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 +
=== Am186ES ===
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Since 2001 AMD no longer recommends using the Am186ES in new designs. The Am186ER is backwards compatible with the Am186ES, requires no software modification, and just a few minor circuitry change. The '''Am186ES''' included all the base features as well as the following:
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 +
* 8-bit or 16-bit memory and I/O static bus modes
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* Serial port hardware handshaking
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* independent serial port baud rate generators
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* Watchdog timer can generate NMI or reset
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* Pseudo static RAM (PSRAM) controller
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* pulse-width demodulation
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* 8 x external interrupts
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* 8 x internal interrupts
  
 
=== Am186ER ===
 
=== Am186ER ===
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The Am186ER series was introduced in October of [[1996]]. These MCUs incorporated the {{amd|Am186}} 32 kB of internal SRAM, non-multiplexed address bus, two independent DMA channels, programmable interrupt controller (6 interrupts), three 16-bit timers, and power saving mode.
+
With low-density [[SRAM]] (less than 4 Megabit) on the decline in the mid 1990s, the typical off-the-shelf setup would require 64K SRAM in a 2 x 32K setup to satisfy the 186's 16-bit external [[data bus]]. For the average system that would mean twice the general SRAM needed. AMD's introduced the '''Am186ER''' series in 1996. These [[microcontroller]]s supported all the features of the Am186ES as well as 32K of integrated RAM on-die.
 +
 
 +
* Watchdog timer can generate NMI or reset
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* 6 x external interrupts
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* 32 KB SRAM
 +
 
 +
=== Am186ED ===
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The '''Am186ED''' supported all the features of the Am186ES but also incorporated a programmable DRAM controller.
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 +
* programmable DRAM controller
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* 8-bit or 16-bit memory and I/O static bus modes
 +
* Serial port hardware handshaking
 +
* independent serial port baud rate generators
 +
* Watchdog timer can generate NMI or reset
 +
* pulse-width demodulation
 +
* 8 x external interrupts
 +
* 8 x internal interrupts
 +
 
 +
== See also ==
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* {{amd|Am186}}
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* {{amd|Am186Cx}}

Revision as of 23:51, 1 June 2016

AMD Am186Ex
no photo (ic).svg
Developer AMD
Manufacturer AMD
Type Microcontrollers
Introduction May 1996 (announced)
October 1996 (launch)
Production 1996
Architecture Am186 core with memory and additional controllers
ISA x86-16
µarch 80186
Word size 16 bit
2 octets
4 nibbles
Process 350 nm
0.35 μm
3.5e-4 mm
Technology CMOS
Package TQFP-100, PQFP-100
Succession
←
Am186

Am186Ex is a family of 16-bit microcontrollers that incorporated the Am186 core along with a number of other application-specific features.

Overview

The Am186Ex is a family of microcontrollers that incorporated the Am186 core along with a number of units. AMD introduced a number of series including: Am186EM, Am186ES, Am186ER, Am186ED.

All MCUs include the following base features:

Members

Am186EM

The Am186EM series was introduced in 1995 and included the base features only. Note that this MCU does not have a dedicated watchdog timer, instead timer 1 (from the 3 available timers) can be used a watchdog timer.

  • 6 x external interrupts

Am186ES

Since 2001 AMD no longer recommends using the Am186ES in new designs. The Am186ER is backwards compatible with the Am186ES, requires no software modification, and just a few minor circuitry change. The Am186ES included all the base features as well as the following:

  • 8-bit or 16-bit memory and I/O static bus modes
  • Serial port hardware handshaking
  • independent serial port baud rate generators
  • Watchdog timer can generate NMI or reset
  • Pseudo static RAM (PSRAM) controller
  • pulse-width demodulation
  • 8 x external interrupts
  • 8 x internal interrupts

Am186ER

With low-density SRAM (less than 4 Megabit) on the decline in the mid 1990s, the typical off-the-shelf setup would require 64K SRAM in a 2 x 32K setup to satisfy the 186's 16-bit external data bus. For the average system that would mean twice the general SRAM needed. AMD's introduced the Am186ER series in 1996. These microcontrollers supported all the features of the Am186ES as well as 32K of integrated RAM on-die.

  • Watchdog timer can generate NMI or reset
  • 6 x external interrupts
  • 32 KB SRAM

Am186ED

The Am186ED supported all the features of the Am186ES but also incorporated a programmable DRAM controller.

  • programmable DRAM controller
  • 8-bit or 16-bit memory and I/O static bus modes
  • Serial port hardware handshaking
  • independent serial port baud rate generators
  • Watchdog timer can generate NMI or reset
  • pulse-width demodulation
  • 8 x external interrupts
  • 8 x internal interrupts

See also

Retrieved from "https://en.wikichip.org/w/index.php?title=amd/am186ex&oldid=21019"
Facts about "Am186Ex - AMD"
RDF feed
core nameAm186 +
designerAMD +
first announcedMay 1996 +
first launchedOctober 1996 +
full page nameamd/am186ex +
instance ofmicrocontroller family +
instruction set architecturex86-16 +
main designerAMD +
manufacturerAMD +
microarchitecture80186 +
nameAMD Am186Ex +
packageTQFP-100 + and PQFP-100 +
process350 nm (0.35 μm, 3.5e-4 mm) +
technologyCMOS +
word size16 bit (2 octets, 4 nibbles) +