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CPU PORT MAP
A) MAIN CPU PORT MAP
NO
PIN NAME
1 P120/RTP0
2 P121/RTP1
3 P122/RTP2
4 P123/RTP3
5 P124/RTP4
6 P125/RTP5
7 P126/RTP6
8 P127/RTP7
9 IC
10 X2
11 X1
12 VDD
13 XT2
14 XT1/P07
15 RESET
16 P00/INTP0/T100
17 P00/INTP1/T101
18 P02/INTP2
19 P03/INTP3
20 P04/INTP4
21 P05/INTP5
22 P06/INTP6
23 AVDD
24 AVREF0
25 P10/ANI0
26 P11/ANI1
27 P12/ANI2
28 P13/ANI3
29 P14/ANI4
30 P15/ANI5
31 P16/ANI6
32 P17/ANI7
33 AVSS
34 P130/AN00
35 P131/AN01
36 AVREF1
ASSIGNMENT
I/O
NAME OF SIGNAL
I
HEAD SET DETECT
O
HEAD /HAND SET CONT
O
H/S TONE CNT
I
RX CARRIER DETECT
O
LCD_D4
O
LCD_D5
O
LCD_D6
O
LCD_D7
VSS
4.5MHZ
4.5MHZ
5V（＋）
32.768KHZ
32.768KHZ
I
RESET
I
RX DATA
I
POWER DOWN
I
BUSY TONE DET
O
CID BUSY CNT
O
LCD_RS
O
LCD_RW
O
LCD_ENABLE
I
L1 INUSE DETECT
I
L2 INUSE DETECT
I
L3 INUSE DETECT
I
L4 INUSE DETECT
I
L1 RINGER DETECT
I
L2 RINGER DETECT
I
L3 RINGER DETECT
I
L4 RINGER DETECT
O
SPKER VOLUME CONT
O
I
SPKER VOL VB DET
ACTIVE
L
L: HEAD SET
H
L: HAND SET
H
H:H/S TONE OUT
H
H:RX CARRIER DETECT
LCD CTL&DRV I/F:D4
LCD CTL&DRV I/F:D5
LCD CTL&DRV I/F:D6
LCD CTL&DRV I/F:D7
VSS
MAIN CLOCK (4.5MHZ)
MAIN CLOCK (4.5MHZ) INPUT
VDD (+5V)
SUB CLOCK(32.768KHZ)
INPUT SUB CLOCK(32.768KHZ)
L
RESET
780 BPS CTL 16 TELL RX DATA
L
DETECTION OF AC POWER CUT OFF
H
DETECTION OF BUSY TONE /
STUTTER TONE
CONTROL CID BUSY
LCD CTL&DRV I/F:RS
LCD CTL&DRV I/F:RW
LCD CTL&DRV I/F:E
CONNECT WITH VDD
A/D
DETECTION OF LINE1 INUSE
A/D
DETECTION OF LINE2 INUSE
A/D
DETECTION OF LINE3 INUSE
A/D
DETECTION OF LINE4 INUSE
S/W(L) DETECTION OF L1 RINGER
USUALLY :H
S/W(L) DETECTION OF L2 RINGER
USUALLY :H
S/W(L) DETECTION OF L3 RINGER
USUALLY :H
S/W(L) DETECTION OF L4 RINGER
USUALLY :H
SPEAKER
CONTROL (ANALOGUE OUTPUT)
N.C
DETECTION OF SPEAKER PHONE
VOLUME VB
S/W: Square Wave
FUNCTION
H: NO HEADSET
H: HEAD SET
：UNDER 33 VOLT
：UNDER 33 VOLT
：UNDER 33 VOLT
：UNDER 33 VOLT
PHONE
VOLUME
17
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