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Connector Pin Assignments
Pin #
Signal Name
49
LCD_EL_EN
50
UIM_CR_DET
51
IGNITION
52
UART2_RXD_UIM_DATA
53
AUDIO_OUT_ONOFF
54
LCD_CS_N
55
HEADSET_INT_N
56
LCD_DATA
57
HEADSET_MIC
58
LCD_CLK
59
AGND
60
LCD_RS
61
MIC_IN+
62
OPT1
63
MIC_IN –
64
OPT2
65
HEADSET_SP
66
GPIO9
67
EARPIECE –
68
AUDIO_IN
42
Table 16. 70-pin Connector Pinout (Continued)
Signal Level [V]
2.8
2.8
12
2.8
1.06 Vp-p
2.8
2.8
2.8
40 mVp-p
2.8
–
2.8
2.8
2.8
8.8 mW
maximum
2.8
1.28 Vp-p
I/O
EL lamp driver control signal (turns EL
O
lamp on or off and controls its intensity).
I – PU
UIM sense detection.
I
Ignition.
O or
UART2 RX or R-UIM data I/O.
I/O – PU
Analog audio output and on/off.
O
DC-biased (VCC -0.6 V).
O
Chip-select for serial LCD.
I – PU
Interrupt when inserting a headset jack.
O
Serial LCD Data.
I
Headset microphone input (RMS).
O
Serial LCD Clock.
–
Analog audio GND.
O
LCD register-select.
Microphone input (+), with serial 0-ohm
I – PU
chip for g20 compatibility. Biased to
1.8 V.
I – PU
Operation mode select 1.
Microphone input (-), with serial 0-ohm
I – PD
chip for g20 compatibility.
I – PU
Operation mode select 2.
Single-ended headset speaker output.
O
32-ohm load, 1.02 kHz.
General-purpose I/O with internal
I/O – PU
pull-up.
Differential (-) earpiece output. Low
O
impedance (32
common mode 1.2 V.
Analog audio in. Input impedance:
I – PU
> 10 kΩ.
Description
Ω
), 35 mW maximum,
98-08901C63-A
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