rtd cpuModule CMC6686GX, User Manual

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8
The CMC6686GX cpuModule
The PC/104 cpuModules described in this manual are designed for industrial applications which re-
quire:
• software and hardware compatibility with the PC/AT world
• high-speed "number-crunching" operation
• low power consumption
• small physical dimensions
• high reliability
• good noise immunity
This cpuModule is highly integrated, combining all major functions of a PC/AT computer on one
compact board. It integrates all primary I/O functions of a AT compatible computer:
• a keyboard interface
• an ECP/EPP parallel port
• two versatile RS232/422/485 serial ports
• a Real Time Clock
• a speaker port
It also enhances standard AT-compatible computer systems by adding:
• one Solid State Disk socket
• a non-volatile configuration without a battery
• a Watchdog Timer
• Fail Safe Boot ROM
The figure below shows a simplified block diagram of the cpuModule:
IEEE 1284
Parallel Port
RS-232/422/485
Serial Port
RS-232/422/485
Serial Port
Keyboard
RTC
Watchdog Timer
MediaGX MMX
Enhanced
Processor
32, 64, 128, or
256 MB
SDRAM
Cx5520 or
CS5530 I/O
Companion
National
PC97317
Super I/O
PC/104 ISA Bus
RTD Enhanced
BIOS