Connectors on 2.05 board:
USB
USB Master sockets
For connecting e.g. a mouse or keyboard
J19, J20: USB type A sockets (connected to U29 Philips USB controller)
J15, J16: Duplicates of J19 and 20 on topside, AMP connectors (these signals are also available on the Samtec expansion connector)
USB slave sockets ('computer connection')
J18: USB B type socket (connected to SA1110)
J7: Duplicate of J18 on topside, AMP connector
J21: USB B type socket (connected to U29 Philips USB controller)
Serial & JTAG
For configuration and debugging
J1: CPU JTAG and 3rd (main) serial port
J9: CPLD/FPGA JTAG and 2nd serial port
LCD
J6: First LCD connector (power, clocks, bias and bottom 4 data bits)
J2: Second LCD connector (top 12 data bits)
Audio
J11: Stereo speaker
J16: Stereo microphone
Power
JP1: Power (6-40V 'vehicle grade')
Other
J17: clock battery connector
J4: Samtek expansion connector
J14: Compactflash connector
J12: 'Pinko' 0.1" header - Amplified Audio, 1st serial port, 3.3 and 5V power, Reset