Service manual

5-10 Samsung Electronics
PIN NAME CIRCUIT NAME I/O STATE DESCRIPTION
RXD 0 / GIP 0 LIU-RXD I - UART DATA FROM I-LIU CHIP IN LIU
RXD 1 / GIP 1 /P-EXIT I
H PAPER IS NOT DETECTED
L PAPER IS DETECTED
/EINT 1 / GIP 2 /MIRQ I
H NO INTERRUPT FROM MODEM
L INTERRUPT FROM MODEM
/EINT 2 / GIP 3 OK2PRINT I
H NO FAULT IN PRINTHEAD
L FAULT IN PRINTHEAD
/EDREQ / GIP 4 /XDREQ I
H NO DMA REQUEST FROM CIP
L DMA REQUEST FROM CIP
UCLK / GIP 5 HEAD-DATA I - CODE DATA FROM PRINTHEAD
TCK / GIOP 0 TCK I/O - TEST PIN FOR EMULATOR (CLOCK)
TMS / GIOP 1 TMS I/O - TEST PIN FOR EMULATOR (DATA MODE)
TDI / GIOP 2 TDI I/O - TEST PIN FOR EMULATOR (DATA FROM EMULATOR)
/TRST / GIOP 3 /TRST I/O - TEST PIN FOR EMULATOR (RESET TO TAP CON.)
TDO / GIOP 4 TDO I/O - TEST PIN FOR EMULATOR (DATA TO EMULATOR)