BenQ
Rev 1.0
ON/OFF button detection or charger detection. Interrupts are
generated at power-down detection of the PWON button and when
abnormal voltage conditions are detected.
3.2.13 Internal bus and interrupt controller (IBIC)
Read and write access to all internal registers being possible via
both the BSP and USP, purpose of the internal bus controller is to
arbitrate the access on the internal bus and to direct the read data to
the proper serial port. During reception of a burst the internal bus
controller assign the transmit part of the BSP to the base-band
downlink to transfer the I & Q samples to the DSP.
This block also handles the internal interrupts generated by the MADC,
BCI and VRPC blocks and generates the micro-controller interrupt
signal INT2.
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