From Wikipedia, the free encyclopedia
The
Intel 80386EX (386EX) is a variant of the
Intel 386
microprocessor designed for
embedded systems. Introduced in August 1994 and was successful in the market being used aboard several
orbiting
satellites and
microsatellites.
Intel did not manufacture another integrated
x86 processor until 2007, when it confirmed the
Enhanced Pentium M-based
Tolapai (EP80579).
[1]
Characteristics
- Introduced August 1994
- Variant of
80386SX intended for
embedded systems
- 26-bit memory addressing for up to 64
MiB of DRAM
- 16-bit data bus, limiting performance but reducing system cost
-
Static core, i.e. may run as slowly (and thus, power efficiently) as desired, down to full halt
- On-chip peripherals:
- clock and power management
- timers/counters
-
watchdog timer
- serial I/O units (synchronous and asynchronous) and parallel I/O
- DMA
- RAM refresh
-
JTAG test logic
- Significantly more successful than the
80376
- Used aboard several orbiting satellites and microsatellites
- Used in NASA's
FlightLinux project
- Used in USRobotics Courier I modem V.everything (Internal ISA and External RS232 ISDN Terminal Adapters with 56KBPS analog remote access server).
- Used in
Ericsson R290 and Globalstar/Qualcomm GSP-1600 satellite phone.
[2]
- Used in many older Garmin GPS units, such as the GPS 48, II, III, and 12.
[3]
[4]
- Used in Akai S5000 & S6000 digital samplers.
- Used in
Nokia 9000 Communicator phone.
[5]
[6]
- Used in Swarco ITC-2 traffic light controller.
See also
References
External links