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  • Atmel AT91RM9200, a low-power SoC with an ARM920T
  • the newest small SBC

  • The CSB637 Single Board Computer is an inexpensive OEM Board that features a 184Mhz ARM920T Core with integrated 10/100 Ethernet, USB Device, USB Host (x2), I2S Audio I/F, 4-Bit SD/MMC (x2), Serial I/O (x4) and Embedded Trace Module (16-Bit).

  • The CSB637 is the newest small SBC from Cogent. It measures 1.75 x 2.5 (63.5 x 44.5mm), and is based on an Atmel AT91RM9200, a low-power SoC (system-on-chip) with an ARM920T core that Atmel says delivers 200 MIPS (millions of instructions per second) performance
  • The Atmel SoC includes 16KB each of instruction and data cache memories, 16KB of SRAM, and 128KB of ROM. An external memory bus includes SDRAM, burst Flash, and static memory controllers. The SoC also includes a variety of on-chip peripheral interfaces.
  • The Cogent board supplements the Atmel microcontroller functionality, according to Direct Insight, offering interfaces that include 10/100 Ethernet MAC and PHY, USB, Dual SDIO, 4 UARTs, SSI, SPI, and CompactFlash Interfaces, an onboard LCD/CRT Controller. Also included are 64MB SDRAM and 8MB flash memory and an "efficient" 3.3V Regulator.
Core 184Mhz ARM920T, 16K I-Cache, 16K D-Cache
SDRAM 64Mbyte 32-Bit Wide SDRAM
FLASH 8Mbyte 16-Bit Wide StrataFLASH
NAND FLASH Dual 4-Bit SD/MMC Controllers (not SDIO compliant)
LCD Controller S1D13506 - 800x600 16-Bit LCD with CRT output
Serial (UART) RS232 x 1 - Three additional UARTS (TTL)
Serial (other) Multi-Chip Select SPI x 1, SSI x 2
Silicon ID Dallas DS2401
Ethernet On-Chip 10/100 Mbit Controller, On-Board 10/100 PHY
Real Time Clock Internal RTC
Bus Expansion

20-Bit Address/16-Bit Data CPU Bus


40+ GPIO (actual amount depends on Peripheral use)

USB Host Dual USB 2.0 (12Mbit) Host ports
USB Device USB 2.0 (12Mbit) Device Port
Audio I2S Support via SSI (requires external Codec)
Compact Flash Compact Flash Interface
Embedded Trace 16-Bit ARM ETM
Power 5V to 35V input, On-Board 3.3V Regulator provides up to 3A to User Board
Battery Control None
Form Factor uSBC, 45mm (1.77") wide x 66mm (2.6") long x 9mm (.355") high
Target Board CSB937 Development/Target board for the CSB637
Boot Monitor Micromonitor
RTOS BSP Micrium μC/OS-II and Linux 2.6.x

Cogent's CSB637 includes a low-profile carrier board connector
- CSB937 Target Board
- CSB7xx_product_matrix


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