Casio PA-2400U Service Manual And Parts List page 36

N o . Pin Name V o l t
243 STATUS0 3V
244 ONSTATUSB 3V
245 CE2B 3V
246 CE2A 3V
247 VDD2 3V
248 ONB 3V
249 RDWRB 3V
250 RDB 3V
251 CS6B 3V
252 CS4B 3V
253 CS2B 3V
254 CS5B 3V
255 ICIOWRB 3V
256 ICIORDB 3V
257 CASHHB 3V
258 CASHLB 3V
259 WRHB 3V
260 WRLB 3V
261 CASLHB 3V
262 CASLLB 3V
263 RASB 3V
264 HSTBY 3V
265 WAITB 3V
266 CKRTC256 3V
267 CFCVRB 3V
268 CFWEB 3V
269 CFWAITB 3V
270 CFVS1 3V
271 CFRESET 3V
272 CFREGB 3V
273 CFRDY 3V
274 CFOEB 3V
275 CFCD2 3V
276 CFCD1 3V
277 VSS
278 CFCE2B 3V
279 TEST3 3V
280 TEST2 3V
281 TEST1 3V
282 DTYPE64 3V
283 SIFSHUTB 3V
284 SIFENB 3V
285 MDTR 3V
286 MDCD 3V
287 TXDB 3V
288 RXDB 3V
I n / O u t
I
STATUS0 signal from CPU
I ONSTATUS signal from CPU
I CE2B signal from CPU
I CE2A signal from CPU
+3V source
O ON circuit start signal to CPU
I/O Read/Write signal from CPU
I Read pulse signal from CPU
I Chip select-6 signal from CPU (PCMCIA)
I Chip select-4 signal from CPU (HOTARU)
I Chip select-2 signal from CPU (LCD Driver)
I Chip select-5 signal from CPU
I IOWR signal from CPU
I IORD signal from CPU
I CASHH signal from CPU
I CASHL signal from CPU
I WE1 signal from CPU
I WE0 signal from CPU
I CASLH signal from CPU
I CASLL signal from CPU
I/O RAS/CE signal from CPU
O HSTBY signal to CPU
O WAIT signal to CPU
I RTC clock signal from CPU
I Compact Flash lock switch
O WE signal for CompactFlash card
I Wait signal for CompactFlash card
I Voltage detect for CompactFlash card
O Reset signal for CompactFlash card
O REG signal for CompactFlash card
I RDY/BSY signal for CompactFlash card
O OE signal for CompactFlash card
I CompactFlash card detector
I CompactFlash card detector
GND
O CE2 signal for CompactFlash card
I Not used
I Not used
I Not used
I Not used
O RXD1 signal for CPU
O 9-pin RXD1 control
O RS232C control signal
I RS232C control signal
O 3-pin TXD signal
I 3-pin RXD signal
— 33 —
Function To/From
IC1
IC1
IC1
IC1
IC1
IC1
IC1
IC1
IC1
IC1
IC1
IC1
IC1
IC1
IC1
IC1
IC1
IC1
IC1
IC1
IC1
IC1
IC1
SW1
CompactFlash card
CompactFlash card
CompactFlash card
CompactFlash card
CompactFlash card
CompactFlash card
CompactFlash card
CompactFlash card
CompactFlash card
CompactFlash card
GND
GND
GND
IC5 (RS232C)
IC5 (RS232C)
IC5 (RS232C)
IC5 (RS232C)
3pin JACK
3pin JACK