Panasonic KX-TA308 Service Manual page 39

17.4 EXT G/A (IC305) PORT MAP
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PIN NAME I/O
4 P00 CTXD0 O CPR SEND DATA
5 P01 CTXD1 O CPR SEND DATA
6 P02 CTXD2 O CPR SEND DATA
7 P03 CTXD3 O CPR SEND DATA
8 P04 CINT O INTERRUPT TO 4 BIT CPU
9 P05 - O -
P06 PDRLY1 O POWER FAILURE TRANSFER
P07 RESET4BIT O RESET TO 4 BIT CPU
P10 BELL1 O EXT BELL CONTROL 1
P11 BELL2 O EXT BELL CONTROL 2
P12 BELL3 O EXT BELL CONTROL 3
P13 BELL4 O EXT BELL CONTROL 4
P14 BELL5 O EXT BELL CONTROL 5
P15 BELL6 O EXT BELL CONTROL 6
P16 BELL7 O EXT BELL CONTROL 7
P17 BELL8 O EXT BELL CONTROL 8
P20 HOOK1 I EXT HOOK DETECT 1
P21 HOOK2 I EXT HOOK DETECT 2
P22 HOOK3 I EXT HOOK DETECT 3
P23 HOOK4 I EXT HOOK DETECT 4
P24 HOOK5 I EXT HOOK DETECT 5
P25 HOOK6 I EXT HOOK DETECT 6
P26 HOOK7 I EXT HOOK DETECT 7
P27 HOOK8 I EXT HOOK DETECT 8
P30 CNG1 I CNG1 DETECT
P31 VOX1 I VOX1 DETECT
P32 EOM1 I MASSAGE 1
P33 STD3 I DISA 1 DTMF RECEIVE
P34 RESET1 O RESET1
P35 P/R1 O REC/PLAY1
P36 CE1 O OGM CE1
P37 OGMSW1 O OGM1 SW
P40 CNG2 I CNG2 DETECT
P41 VOX2 I VOX2 DETECT
P42 EOM2 I MASSAGE 2
P43 STD4 I DISA 2 DTMF RECEIVE
P44 RESET2 O RESET2
P45 P/R2 O REC/PLAY2
P46 CE2 O OGM CE2
P47 OGMSW2 O OGM2 SW
P50 CRXD0 O CPR RECEIVE DATA
P51 CRXD1 O CPR RECEIVE DATA
P52 CRXD2 O CPR RECEIVE DATA
P53 CRXD3 O CPR RECEIVE DATA
P54 CREQ O CPR REQUEST
P55 BR1 O BREAK1
P56 OL1 I OVER CURRENT1
P57 CACK I CPR ACK
P60 TA616CARD I TA62477 DETECT
P61 DISACARD I OGM DETECT
P62 TA08CARD I TA62470 DETECT
P63 - I -
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FUNCTION ACTIVE
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