Panasonic KX-FP81BX Service Manual page 130

KX-FP81BX / KX-FP81CX / KX-FP82CX
Descriptions of Pin Distribution (IC501)
NO.
1 AIN1
2 AIN2
3 AIN3
4 AMON
5 VSSB
6 VDDB
7 VDD(3.3V/B)
8 X32OUT
9 X32IN
10 VSS
11 XBACEN
12 VDD (5V/B)
13 XRAMCS
14 FTG
15 F1
16 F2/OP
17 FR/OP
18 CPC
19 VDD (5V)
20 VSS
21 RVN
22 IRDATXD/IOP
23 IRDARXD/
IOP80
24 TXD/IOP
25 RXD/IOP
26 XRTS/IOP
27 XCTS/IOP
28 MIDAT/IOP
29 MICLK/IOP
30 TONE1
31 TONE2
32 VOLUREF
33 VOLUOUT
34 VOLUIN
35 MILAT/IOP
36 XNMI
37 FMEMDO/IOP
38 FMEMDI/IOP
39 FMEMCLK/IOP
40 VSS
41 VDD (5V)
42 20KOSC/IOP
43 XWAIT
44 HSTRD/IOP
45 HSTWR/IOP
46 XOPRBE
47 ADR15
48 ADR14
49 ADR13
50 VDD (3.3V)
51 XOUT
52 XIN
53 VSS
54 VDD (5V)
55 XTEST
56 TEST1
57 TEST2
58 TEST3
59 TEST4
60 XMDMINT
61 XMDMCS
62 VSS
63 VDD (3.3V)
64 XRAS/IOP
SIGNAL I/O
A
A
A
A
O
I
I
O
O
O
O
O
I
I
O
O
O
O
O
O
O
O
A
A
A
A
A
I
I
O
O
I
I
I
I
O
O
O
O
O
O
I
O
I
I
I
I
I
O
O
POWER SUPPLIED
VOLTAGE
3.3V CCD IMAGE SIGNAL INPUT
3.3V THERMISTOR TEMPERATURE WATCH INPUT
3.3V -----------
3.3V ANALOG SIGNAL MONITOR TERMINAL
GND POWER SOURCE (ANALOG GND)
3.3V POWER SOURCE (ANALOG +3.3V)
3.3V/BATT POWER SOURCE (+3.3V/LITHIUM BATTERY)
3.3V/BATT RTC (32.768KHz) CONNECTION
3.3V/BATT RTC (32.768KHz) CONNECTION
GND GND
5V/BATT BACKUP ENABLE
5V/BATT POWER SOURCE (+5V/LITHIUM BATTERY)
5V/BATT RAM (IC504) CHIP SELECT
5V SH SIGNAL OUTPUT FOR CIS (SI)
5V 01 SIGNAL OUTPUT FOR CIS (CLK)
5V OUTPUT PORT (HSTXMUTE)
5V OUTPUT PORT (ON-MREN)
5V INPUT PORT (CISSEL)
5V POWER SOURCE (+5V)
GND POWER SOURCE (GND)
5V INPUT PORT (MPOS)
5V OUTPUT PORT (CISON)
5V OUTPUT PORT (THON)
5V OUTPUT PORT (TONFIEN)
5V OUTPUT PORT (MDMRXEN)
5V OUTPUT PORT (MDMTXEN)
5V OUTPUT PORT (OF-MREN)
5V OUTPUT PORT (HSRXEN)
5V OUTPUT PORT (SPMUTE)
5V TONE OUTPUT
5V TONE OUTPUT
5V ANALOG REF VOLTAGE
5V VOLUME OUTPUT
5V VOLUME INPUT
5V INPUT PORT (HOOK)
5V HIGH FIXED
5V OUTPUT PORT (CISLED)
5V OUTPUT PORT (LINERLY)
5V INPUT PORT (BELL)
GND POWER SOURCE (GND)
5V POWER SOURCE (+5V)
5V INPUT PORT (EXTHOOK)
5V INPUT PORT (FILM)
5V INPUT PORT (PTOP)
5V OUTPUT PORT (PTOP-EN)
5V OPRESET
5V CPU ADDRESS BUS 15 (NOT USED)
5V CPU ADDRESS BUS 14 (NOT USED)
5V CPU ADDRESS BUS 13 (NOT USED)
3.3V POWER SOURCE (+3.3V)
3.3V SYSTEM CLOCK (24MHz)
3.3V SYSTEM CLOCK (24MHz)
GND POWER SOURCE (GND)
5V POWER SOURCE (+5V)
5V 24MHz CLOCK
5V HIGH FIXED
5V HIGH FIXED
5V HIGH FIXED
5V HIGH FIXED
5V MODEM INTERRUPT
5V MODEM CHIP SELECT
GND POWER SOURCE (GND)
3.3V POWER SOURCE (3.3V)
5V DRAM (IC503) ROW ADDRESS STROBE
130
DESCRIPTION