SB6120 Cable modem

Motorola SB61202 surfboard
This modem DOCSIS 3.0 modem and has TI pumma5 family. The CPU core is ARM core. It employs 8M SPI flash.Use USB JTAG NT's can program the flash ISP.

The fornt of the PCB board.
Close="" look of the SPI flash. The pins soldered.
The back of the PCB board. The ISP pin is in the red square.
The ISP pin (TRST from USB JTAG NT).

JTAG connector of USB JTAG NT Pin on the flash
Pin 1(TRST) ISP in on the back of the board.(R362)
Pin 3(TDI) Pin 15(SI)
Pin 5(TDO) Pin 8(SO)
Pin 9(TCK) Pin 16(SCK)
Pin 11(RESET) Pin 7 (CS)
Pin 2(GND) Pin 10(GND)

Definition Commands (usbjtag NT 0.07 and up):

Backup firmware
getram 0 800000
save 0 800000

Program flash
flshdct 0
ldram 0
erase 0 800000
sprogram 0 800000

Compare the result
cmpram 0 800000

Lasted Updated:December 31 2016

Vists since Jan 4,2009