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Connector Pin Assignments
4.2
36-PIN ZIF INTERFACE CONNECTOR
Table 17 shows the pin assignments for c18 models using a 36-pin ZIF interface connector
.
69
E
O
Differential (+) earpiece output. Low
impedance (32
Ω
), 35 mW maximum,
common mode 1.2 V.
70
KEYB_DRV
2.8
O – Sink
Current sink for keypad LED backlight
(up to at least 36 mA).
Note
All identical names for 70/36/28-pin connectors correspond to the same signal.
All UART names are referenced to PC, as the c18 is a DCE device.
Table 17. 36-pin ZIF Connector Pinout
Pin #
Signal Name
Signal Level [V]
I/O
Description
1
USB_VBUS
4.4 – 5.25
I
USB power, 5.0V nominal.
2
USB_D+
3.3
I/O
USB D+ signal.
3
USB_D-
3.3
I/O
USB D- signal.
4
UART1_TXD
2.8
I
5V tolerant (from PC to OEM).
5
UART1_RXD
2.8
O
From OEM to PC.
6
UART1_DTR
2.8
I
5V tolerant.
7
UART1_DCD
2.8
O
8
UART1_RTS
2.8
I
5V tolerant.
9
UART1_CTS
2.8
O
10
UART1_DSR
2.8
O
11
UART1_RI
2.8
O
12
UART2_TXD
2.8
I
5V tolerant (from PC to OEM).
13
AUDIO_IN
1.28 Vp-p
I
Analog Audio_In.
Input impedance:
greater than 10k
Ω
.
14
AUDIO_OUT_ONOFF
1.06 Vp-p
I/O
Analog Audio_Out and on/off.
Table 16. 70-pin Connector Pinout
(Continued)
Pin #
Signal Name
Signal Level [V]
I/O
Description
Содержание c18
Страница 1: ...Developer s Guide Motorola c18 Cellular Engine Module Description 98 08901C63 A ...
Страница 8: ...viii 98 08901C63 A ...
Страница 20: ...Introduction 12 98 08901C63 A ...
Страница 46: ...Hardware Description 38 98 08901C63 A ...
Страница 56: ...Mechanical Description 48 98 08901C63 A Figure 22 c18a1 Bottom View Figure 23 c18a1 Side View ...
Страница 57: ...98 08901C63 A 49 Mechanical Description Figure 24 c18c Top View Figure 25 c18c Bottom View ...
Страница 60: ...Service Support 52 98 08901C63 A ...
Страница 62: ...Suggested Connectors 54 98 08901C63 A ...
Страница 78: ...Hardware Requirements for CDG2 and Field Testing 70 98 08901C63 A ...
Страница 82: ...Index 74 98 08901C63 O ...