CSB1725 - Marvell MV78200 MXM System On a Module (SOM)
The CSB1725, designed, developed and manufactured by Cogent Computer Systems, Inc., is a high performance,
network oriented, ARMv5TE based System on a Module (SOM). The CSB1725 provides a small, powerful and flexible
engine for embedded Linux based 10/100/1000 networking and storage applications. The features of the CSB1725
are listed below.
| Feature | Description |
| Core | 1.0Ghz Dual Superscalar ARMv5TE Cores, 32KB I/D and 512K L2 Cache |
| Floating Point Unit | IEEE 754 Compliant Single/Double Precision |
| SDRAM | 1GByte 64-Bit Wide DDR2-667 with 8-Bit ECC |
| NOR FLASH | 64MByte 16-Bit wide Spansion Flash with 64-Bit ID |
| NAND FLASH | 512MByte 8-Bit Wide SLC NAND Flash |
| PCI Express Ports | Dual x4 Root Complex or Endpoint, or One x4 and Three x1 Root Complex Only |
| GIGe Copper Ports | Dual 10/100/1000 Ethernet Ports |
| Video Output Port | n/a |
| Video Input Port | n/a |
| CPU SERDES Port | n/a |
| SATA Ports | Dual Gen I and Gen II |
| SDIO Port | Used for 4-Wire UART 3 and SPI Port via TDM Controller |
| SSI Port | n/a |
| I2S/AC97 | n/a |
| UART Ports | Four 4-Wire UARTS, up to 920K Baud (4th UART on SDIO Port Pins) |
| CAN Ports | n/a |
| SPI Port | 50Mhz, 1 Chip Select, Bootable with off-board SPI Flash |
| USB Ports | Dual USB2.0 480Mbit Host Ports |
| I2C Ports | Dual 100Khz/400Khz, Master and Slave Support |
| Real Time Clock | DS1339 RTC with External Battery Input |
| XOR Engine |
Dual Channel with iSCSI CRC32C Mode |
Security Offload |
DES, 3DES, AES128, AES256, SHA-1 and MD5 |
| Boot Options | NOR, NAND and SPI (off-board) |
| Power Management | 8-Bit AVR Micro supports Power Sequence, Configuration and Thermal Management |
| Form Factor | Cogent MXM, 70mm x 75mm, Air and Conduction Cooling Options |
| JTAG | Standard ARM JTAG Interface (Header is off board) |
| Power | 8V to 14V input, On-Board 3.3V/6Amp Regulator (up to 4A is available off board) |
| Target Board | CSB1701 Micro-ATX Development Board |
| Boot Monitor | U-boot |
| Datasheet | CSB1725 datasheet |
| Board Photo | Top Side and Back Side |
| Users Manual | CSB1725 Users Manual - Preliminary |
| Linux BSP | 2.6.37 or greater |
| Price | Contact Cogent |
| Availability Status | Production |



