Xircom EAG2919 Benutzerhandbuch
Eagle II GSM Radio Module Technical Manual Preliminary Draft: 08/31/00
17
Part Number: 07100017 version 00.04
© 2000 Xircom, Inc. All rights reserved.
All trademarks and copyrights are the property of Xircom, Inc.
All trademarks and copyrights are the property of Xircom, Inc.
Pin
Number
Signal
Name
Direction
Functionality
Voltage
Level
Clock
27
CLKOUT
To CPE
Clock output. A 50% duty cycle 13 MHz square wave
clock source. Used for synchronization of external
circuitry to the base band processor. Leave signal
disconnected if function is not used.
3 V
General Purpose I/O
13, 15, 17, 19
GPIO0-GPIO3
To/From CPE
General purpose I/O bits 0 through 3. Used as general
purpose input or output lines for monitoring or control of
external devices. Requires customized stack software to
implement. Leave signals disconnected if function is not
used.
3 V
LED Status Signals
40, 42
LED0-LED1
To CPE
Status LED signal 0 and 1. Outputs are active low. LED0
corresponds to the “red” element of a bi-color LED. LED1
corresponds to the “green” element of a bi-color LED.
These signals indicate radio link status on a remote LED.
Leave signals disconnected if function is not used.
3 V
Transmit and Receive Data Lines
26
TX1
To CPE
Transmit Data 1. DTE Output signal. Secondary serial-
interface transmit data signal. Used as a debug interface
for test purposes. Leave signal disconnected if function is
not used.
3 V
30
RX1
From CPE
Receive Data 1. DTE Input signal. Secondary serial-
interface receive data signal. Used as a debug interface
for test purposes. Leave signal disconnected if function is
not used.
5 V or 3 V
SIM Signals (Data Power Control )
58
SIM-VCC
To CPE
SIM 3 volt power. A 3-volt power supply output signal to a
remote SIM device. Power is controlled by the base band
processor. Leave signal disconnected if function is not
used.
3 V or 5 V
56
SIM-IN
From CPE
SIM IN signal. Active high. A remote SIM card detection
signal input. Leave signal disconnected if function is not
used.
5 V or 3 V
54
SIM-RST
To CPE
SIM reset. An output signal to reset a remote SIM device.
Leave signal disconnected if function is not used.
3 V
50
SIM-IO
To/From CPE
SIM input output. Serial I/O line to a remote SIM device.
Leave signal disconnected if function is not used.
5 V or 3 V
46
SIM-CLK
To CPE
SIM clock output signal to a remote SIM device. Clock
frequency is 3.25 MHz. Leave signal disconnected if
function is not used.
3 V or 5V