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without prior written agreement.
WM_PRJ_Q24NG_PTS_002-001 June
2006
3.6 BOOT signal (optional)
This input can be used to download software in the Flash memory of the
Q24NG.
The internal boot procedure is started when this pin is low during the reset
of the module.
In normal mode this pin has to be left open.
In Internal boot mode, low level has to be set through a 1 k
Ω
resistor.
If used, this input has to be driven by an open collector or an open drain
output.
BOOT : Pin 12
1K
Ω
BOOT: Pin 12
1 k
Ω
Switch BOOT
Figure 20: BOOT pin connection
•
If Switch BOOT = 1, Boot pin 12 = 0, for download mode
•
If Switch BOOT = 0, Boot pin 12 = 1, for normal mode
