| DCM315 Taiwan Cable modem |
RCA DCM315 Taiwan surfboard
The CPU of the board uses BCM3348. The tool to debug the CPU is EJTAG (DMA).
| Picture showing board front |
| Picture showing back of the board. J202 is JTAG |
| Jtag pins soldered |
| JTAG Name | JTAG connector of USB JTAG NT | JTAG on DCM315 |
| TRST | Pin 1 | Pin 1 |
| TDI | Pin 3 | Pin 2 |
| TDO | Pin 5 | Pin 3 |
| TMS | Pin 7 | Pin 4 |
| TCK | Pin 9 | Pin 5 |
| GND | Pin 2 | Pin 6 |
| Flash | One 2MB | 28F160C3 |
| Firmware | 2MB | $9FC00000-$9FDFFFFF |
| RAM | 16MB | $80000000-$81000000 |
The CPU is compatible with SB5100 and you can use testing as SB5100. If you use UJModem select SB5100 as your target.
