Toshiba PCX2500 (DAZ8821F)

"KMA320010903", "TANSUI-A", "PCX V:X3", and a date code
 * of 0245 is silkscreened on one PCX2500's board.

It's presumed to be running VxWorks.
 * CPU: PUMA, Board: Tansui, vxTarget


 * Toshiba PCX2500 thread on the Haxorware forums
 * The board image shown (from here) has a different
 * layout than the one populating this entry.

JTAG

 * TCK – the TCK or 'test clock' synchronizes the internal state machine operations.
 * TMS – the TMS or 'test mode state' is sampled at the rising edge of TCK to determine the next state.
 * TDI – the TDI or 'test data in' represents the data shifted into the device's test or programming logic.
 * It is sampled at the rising edge of TCK when the internal state machine is in the correct state.


 * TDO – the TDO or 'test data out' represents the data shifted out of the device's test or programming
 * logic and is valid on the falling edge of TCK when the internal state machine is in the correct state.


 * TRST – the TRST or 'test reset' is an optional pin which, when available, can reset the TAP controller's
 * state machine.


 * GND - the GND or 'ground'.

Pinout
1 [3.3] (GND) 2 3 (TxD) (GND) 4 5 (RxD) (GND) 6 JP3