Sharp XE-A203 Service Manual - Page 10

PORT P64 P65 P66 P67 P70 P71 P72 P73 P74 P75 P76 P77 P80 P81 P82 P83 P84 P85 P86 P87 P90 P91 P92 P93 P94 P95 P96 P97 P100 P101 P102 P103 P104 P105 P106 P107 BYTE CNVss /RESET Xout Vss Xin Vcc Vcc Vss AVss Vref AVcc PIN No. 34 33 32 31 30 29 28 27 26 25 24 23 22 21 20 19 18 17 11 10 7 6 5 4 3 2 1 100 97 95 94 93 92 91 90 89 8 9 12 13 14 15 16 62 64 96 98 99 Pin name P64 P65 P66 P67 TXD2 P71 CLK2 P73 P74 P75 P76 P77 P80 P81 /INT0 /INT1 /INT2 /NMI XCOUT XCIN P90 P91 P92 P93 P94 P95 P96 P97 AN0 AN1 P102 AN3 P104 P105 P106 P107 BYTE CNVss /RESET Xout Vss Xin Vcc Vcc Vss AVss Vref AVcc Signal name SD_POWER# SD_CS# SD_CD# SD_WP# DAT (NU) CLK (NU) P74 P75 /RES_USB /EPM CTRL BUZZER MOTOR POFF /DREQUSB /INTUSB (NU) XCOUT XCIN P90 P91 P92 P93 P94 P95 P96 P97 P100 P101 /STB2 VBAT (NU) VPON /LAT /STB1 I/O O O I I O O O O I I O O O O I I I I I I I I I I I I I I I I O I O O O O I I I O power I power power power power ref power Initial value H H L L L L L H L L H L L H H - OFF MODE Out L Out L In In Out L Out L Out L Out L In In Out L Out L Out L Out L In In In In In In In In In In In In In In In In In In Out L Out L Out L In In In In Out In Function SD POWER# SD CS# SD CD# SD WP# PRINTER DATA OUT UNUSED PRINTER CLOCK UNUSED FIXED TO L FIXED TO L USB RESET /EPM CONTROL SIGNAL WHEN IPL BUZZER PAPER TAKE UP MOTOR POWER INTERRUPT USB DMA REQUEST USB INTERRUPT UNUSED 32.768kHz 32.768kHz KEY IN KEY IN KEY IN KEY IN KEY IN KEY IN KEY IN KEY IN HEAD TEMPERATURE MONITOR HEAD VOLTAGE MONITOR PRINTER/STB2 BATTERY VOLTAGE UNUSED PRINTER HEAD POWER PRINTER DATA LATCH PRINTER/STB1 CONNECTED TO VDD NOMAL: L / BOOT: H RESET CLOCK CONNECTED TO GND CLOCK CONNECTED TO VDD CONNECTED TO VDD CONNECTED TO GND CONNECTED TO GND CONNECTED TO VDD CONNECTED TO VDD XE-A203U/XE-A203A HARDWARE DESCRIPTION - 8 -