| DPC3000 Cable modem |
Cisco surfboard Modem
This modem DOCSIS 3.0 modem and has TI pumma5 family. The CPU core is ARM core. It employs 16M SPI flash.Use USB JTAG NT's can program the flash ISP.
| The PCB board.ISP pin in red
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Close look at the soldering. ISP pin in red.
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| JTAG connector of USB JTAG NT | Connector of u-Link NT (You can directly apply 3.3v and ignore the ISP pin | Pin on the flash |
| Pin 1(TRST) | Pin 1(3.3V) | ISP. Pin5 of U104 |
| Pin 3(TDI) | Pin 10(IO0) | Pin 15(SI) |
| Pin 5(TDO) | Pin 8(IO1) | Pin 8(SO) |
| Pin 9(TCK) | Pin 6(IO2) | Pin 16(SCK) |
| Pin 11(RESET) | Pin 4(IO3) | Pin 7 (CS) |
| Pin 2(GND) | Pin 2(GND) | Pin 10(GND) |
| Definition | Commands (usbjtag NT 0.07 and up): |
| TDPC3000.xml |
Backup firmware getram 0 1000000 save 0 1000000 Program flash flshdct 0 ldram 0 program 0 100000 Compare the result cmpram 0 1000000 |
