— 31 —
N o .
Pin Name
V o l t
I o / O u t
Function
To/From
243
STATUS0
3V
I
STATUS0 signal from CPU
IC1
244 ONSTATUSB
3V
I
ONSTATUS signal from CPU
IC1
245
CE2B
3V
I
CE2B signal from CPU
IC1
246
CE2A
3V
I
CE2A signal from CPU
IC1
247
VDD2
3V
+3V source
248
ONB
3V
O
ON circuit start signal to CPU
IC1
249
RDWRB
3V
I/O
Read/Write signal from CPU
IC1
250
RDB
3V
I
Read pulse signal from CPU
IC1
251
CS6B
3V
I
Chip select-6 signal from CPU (PCMCIA)
IC1
252
CS4B
3V
I
Chip select-4 signal from CPU (HOTARU)
IC1
253
CS2B
3V
I
Chip select-2 signal from CPU (LCD Driver)
IC1
254
CS5B
3V
I
Chip select-5 signal from CPU
IC1
255
ICIOWRB
3V
I
IOWR signal from CPU
IC1
256
ICIORDB
3V
I
IORD signal from CPU
IC1
257
CASHHB
3V
I
CASHH signal from CPU
IC1
258
CASHLB
3V
I
CASHL signal from CPU
IC1
259
WRHB
3V
I
WE1 signal from CPU
IC1
260
WRLB
3V
I
WE0 signal from CPU
IC1
261
CASLHB
3V
I
CASLH signal from CPU
IC1
262
CASLLB
3V
I
CASLL signal from CPU
IC1
263
RASB
3V
I/O
RAS/CE signal from CPU
IC1
264
HSTBY
3V
O
HSTBY signal to CPU
IC1
265
WAITB
3V
O
WAIT signal to CPU
IC1
266
CKRTC256
3V
I
RTC clock signal from CPU
IC1
267
CFCVRB
3V
I
Compact Flash lock switch
SW1
268
CFWEB
3V
O
WE signal for CompactFlash card
CompactFlash card
269
CFWAITB
3V
I
Wait signal for CompactFlash card
CompactFlash card
270
CFVS1
3V
I
Voltage detect for CompactFlash card
CompactFlash card
271
CFRESET
3V
O
Reset signal for CompactFlash card
CompactFlash card
272
CFREGB
3V
O
REG signal for CompactFlash card
CompactFlash card
273
CFRDY
3V
I
RDY/BSY signal for CompactFlash card
CompactFlash card
274
CFOEB
3V
O
OE signal for CompactFlash card
CompactFlash card
275
CFCD2
3V
I
CompactFlash card detector
CompactFlash card
276
CFCD1
3V
I
CompactFlash card detector
CompactFlash card
277
VSS
GND
278
CFCE2B
3V
O
CE2 signal for CompactFlash card
CompactFlash card
279
TEST3
3V
I
Not used
GND
280
TEST2
3V
I
Not used
GND
281
TEST1
3V
I
Not used
GND
282
DTYPE64
3V
I
Not used
283
SIFSHUTB
3V
O
RXD1 signal for CPU
IC5 (RS232C)
284
SIFENB
3V
O
9-pin RXD1 control
IC5 (RS232C)
285
MDTR
3V
O
RS232C control signal
IC5 (RS232C)
286
MDCD
3V
I
RS232C control signal
IC5 (RS232C)
287
TXDB
3V
O
3-pin TXD signal
3pin JACK
288
RXDB
3V
I
3-pin RXD signal
3pin JACK
Summary of Contents for Cassiopeia A-20
Page 1: ...Handheld Personal Computer A 20 ZX 340 R DEC 1997 without price A 20...
Page 23: ...20 7 Restoring starts 8 Click OK...
Page 72: ...69 PCB VIEW...
Page 76: ...73 Z370 ROM PCB ROM To Z340 1 PCB 1 3 MAIN CN7...
Page 77: ...74 Z340 DPMI PCB MIC To Z340 LED PCB LED CN5 From Z340 1 PCB 1 3 MAIN CN4 To LCD unit CN1...
Page 80: ...CASIO TECHNO CO LTD 8 11 10 Nishi Shinjuku Shinjuku ku Tokyo 160 Japan Telephone 03 3347 4926...