The RTD Embedded Technologies CMC16686GX300HR-128 / D32X is a PC/104 CPU module engineered for rugged embedded applications requiring high integration and modularity. Based on the National Semiconductor Geode GX1 MMX processor, this compact board consolidates essential PC/AT functions into a single stackable unit. The modular PC/104 architecture enables system expansion through additional modules without requiring external backplanes or card cages, delivering flexibility for demanding field deployments.
Technical Specifications
Processor: National Semiconductor Geode GX1 MMX microprocessor
Memory: 32, 64, 128, or 256 MB SDRAM (this unit ships with 128 MB)
Power Supply: 5V +/- 5%, 10 W typical
Operating Temperature: -40°C to +85°C (case temperature)
Operating Humidity: 0% to 95%, non-condensing
Storage Temperature: -55°C to +125°C
Interfaces:
• PC/104 ISA Bus (16-bit)
• Two RS-232/422/485 serial ports
• IEEE 1284 parallel port (switchable to 16-bit digital I/O)
• Two 8-bit TTL-compatible programmable digital I/O ports
• PS/2 keyboard and mouse interfaces
• 10/100 Base-T Ethernet
• Onboard Real-Time Clock
• SSD socket
• Speaker port
– Key Features
• Integrated watchdog timer for system reliability
• RTD Enhanced Award BIOS supporting ROM-DOS, MS-DOS, and Windows
• Fail-Safe Boot ROM with ROM-DOS, configurable via jumper JP5
• Multi-media boot capability: floppy disk, hard disk, SSD, boot block flash, DiskOnChip
• Flexible I/O architecture with bit and byte programmable digital ports
– Typical Applications
Field data acquisition, industrial process control, remote monitoring stations, embedded automation systems.
– Compatibility & Integration
Supports ROM-DOS, MS-DOS, and Windows operating systems. Compatible with PC-compatible real-time operating systems; custom drivers may be required for SSD and watchdog timer functionality on some RTOS platforms.


















