Specifications

Integra M2106+
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This document is the sole and exclusive property of Wavecom. Not to be distributed or divulged without prior written
agreement.
WA_DEV_M2106+_PTS_003-001 April, 2007
3.4 Alternative Download Control (BOOT pin)
If the standard X-modem download procedure does not work correctly, an alternative download procedure
can be selected with the BOOT pin. This alternative procedure requires a specific downloading software tool.
See section
6.1, "Firmware Upgrade" for details.
Pin description
Signal Pin # I/O Reset State I/O type Description
BOOT 23 I Pull up CMOS Alternative download mode selection
The alternative download procedure starts when this input is low during the Wireless CPU
®
power-ON. In
normal mode, this pin must be left open.
If used, this input must be driven either by an open collector or an open drain. See the example application
diagram below.
OR
Switch BOOT
BOOT pin
1K
Switch BOOT
BOOT pin
1K
Figure 8: BOOT application schematic
• If BOOT pin = 1, the Wireless CPU
®
is in normal mode
• If BOOT pin = 0, the Wireless CPU
®
is in alternative download mode