Motorola c18, Developer'S Manual

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