RP614 is a very cheap 4-Port DSL/Cable router from NetGear.
I bought this router from FutureShop and it was 29$ after
Since it's pretty cheap, I just wonder what is inside this little beast. So I
unscrewed the router cover and revealed the secret.
You can see from the picture, RP614 is mainly powered by the Samsung S3C4510B
Memory devices are 1MB Flash(MX,16bit port) and 8MB of SDRAM(EtronTech, 16bit
There is a Broadcom 6 Port switch chip (the one with the heatsink) to do the
4 port ethernet switching job and connects to the S3C4510B's ethernet MII
For the WAN interface which is supposed to be connected to the DSL/Cable
modem, a ISA ethernet controller RTL8019AS from RealTek has been used on
Fortunately, the NetGear designers left the Jtag and the serial port on the
PCB. They are basically on the side near the Broadcom switch. They came with no
connector soldered. So I have to solder the connecters by myself.
The JTAG is a standard 14PIN ARM JTAG debug port. It's compatible with the
standard WIGGLER JTAG interface cable which could be easily found in the store
or just make your own.
The serial port is a 10-pin connection but really you only need 3 pins out of
it. Pin 3,4,10 are TXD, RXD and GND. But for sure you need a level shifter
to be connected to your PC's RS-232 port.