Q2686 Wavecom, Q2686 Datasheet - Page 36

• Manufacturer Part Number: Q2686
• Description: Wireless CPU
• Manufacturer: Wavecom

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~CT109/DCD1 *
3.6 Main Serial Link (UART1)
A flexible 8-wire serial interface is available, complying with V24 protocol
signalling, but not with V28 (electrical interface) due to a 2.8 volts interface.
The signals are:
See Chapter “3.3 Electrical information for digital I/O” for Open drain, 2V8 and 1V8 voltage
characteristics and for Reset state definition.
~CT107/DSR1*
~CT105/RTS1*
~CT106/CTS1*
This document is the sole and exclusive property of WAVECOM. Not to be distributed or divulged without
prior written agreement.
WM_PRJ_Q2686_PTS_001-007
CT104/RXD1*
CT103/TXD1*
~CT125/RI1 *
*According to PC view
CT102/GND*
•
•
•
•
•
•
•
•
~CT108-
2/DTR1*
Signal
TX data (CT103/TX)
RX data (CT104/RX)
Request To Send (~CT105/RTS)
Clear To Send (~CT106/CTS)
Data Terminal Ready (~CT108-2/DTR)
Data Set Ready (~CT107/DSR).
Data Carrier Detect (~CT109/DCD)
Ring Indicator (CT125/RI).
confidential ©
Shielding
number
leads
Pin
71
73
72
75
74
76
70
69
UART1 interface pin description
I/O
O
O
O
O
O
I
I
I
GND
type
2V8
2V8
2V8
2V8
2V8
2V8
2V8
2V8
I/O
Undefined Data Carrier
Undefined Ring Indicator
Reset
state
Z
1
Z
Z
Z
Z
Transmit serial
data
Receive serial
data
Request To
Send
Clear To Send
Data Set Ready
Data Terminal
Ready
Detect
Ground
Description
Q2686 Wireless CPU
Multiplexed
Interfaces
GPIO36
GPIO37
GPIO38
GPIO39
GPIO40
GPIO41
GPIO43
GPIO42
with
March 6, 2007
Page: 35 / 87
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