I 2 C Operations And Setup Procedure Examples - Fujitsu F2MC-8FX Hardware Manual

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22.7 I C Operations and Setup Procedure Examples
This section describes the operation of I
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Operation of I C
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I C interface
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The I C interface is an eight-bit serial interface synchronized with a shift clock. It conforms to the I
specification defined by Philips.
MCU standby mode wakeup function
The wakeup function wakes up the MCU upon detection of a start condition, from low power consumption
mode such as stop or watch mode.
Setup Procedure Examples
Use the following procedure to set up I
Initialization
1) Set the port for input (DDR0).
2) Set the interrupt level (ILR2, ILR4).
3) Set the slave address (IAAR0).
4) Select the clock and enable I
5) Enable bus error interrupt requests (IBCR00:BEIE = 1).
Interrupt processing
1) Arbitrary processing
2) Clear the bus error interrupt request flag (IBCR00:BER = 0).
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C.
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C:
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C operation (ICCR0).
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CHAPTER 22 I C
2
C bus
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