Panasonic KX-TG6421FXS Service Manual page 74

KX-TG6421FXS/KX-TG6421FXT/KX-TGA641FXS/KX-TGA641FXT
Pin No. Description
63 P2_5/PCM_FSC/SF
64 P2_4/SCL1/PCM_DO/DP3
65 P2_3/SDA1/PCM_DI/DP2
66 P2_2/PCM_CLK/CLK100
67 P2_1/ECZ2/PWM1/LED4
68 P2_0/ECZ1/PWM0/LED3
69 VDD2
70 LDORF_CTRL
71 RF_SUPPLY2
72 RF0n
73 RFP4
74 RFP3
75 VDD_PADR
76 VSS_PADR1
77 RF_TXp
78 RF_TXn
79 VSS_PADR2
80 RFP2
81 GND
I/O Connection
D.O LCD_CSB
D.O N.C.
D.O N.C.
D.O LCD_RESET
D.O N.C.
D.O BELL_LED_A
- +1.8V
A.I N.C.
- RF_SUPPLY2
D.O ANT2
D.O PON
D.O PSEL
A.O VDD_PADRV
- GND
A.O TXp
A.O TXn
- GND
D.O TXON
- GND
74
at Normal mode at Reset mode
H/L
L
L
H/L
L
A.I
-
A.I
-
H/L
H/L
H/L
A.O
-
A.O
A.O
-
H/L
-
H
L
L
L
L
A.I
-
A.I
-
Hi-Z
Hi-Z
Hi-Z
A.O
-
A.O
A.O
-
Hi-Z
-