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2
CHAPTER 19 I
C INTERFACE
2
19.2 I
C Interface Register
[bit13] SCC: Start Condition Continue
It is a start condition generation bit.
(at writing)
0
1
This bit is always "0" at the beginning of reading.
[bit12] MSS: Master Slave Select
It is Master/slave selection bit.
0
1
If the arbitration lost has occurred during the master sending, it will be cleared and will switch to the slave
mode.
Note:
Because it is not possible to receive it as a slave on the following condition, the transmission of the
general call address is prohibited.
• When (1) other LSI with the master mode function without this LSI exists on the bus, (2) this LSI
transmits the general call address as master, and (3) the arbitration lost is generated since the
second byte.
[bit11] ACK: ACKnowledge
It is the acknowledge generation enable bit when the data is received.
0
1
Is invalid during receiving address data in the slave.
[bit10] GCAA: General Call Address Acknowledge
It is an acknowledge generating enable bit, when you receive the General call address.
0
1
[bit9] INTE: INTerrupt Enable
It is Interrupt enable bits.
0
1
The interruption is generated if the INT bit is "1" when this bit is "1".
438
No effect on operation
A start condition is regenerated on master transmission.
Generates the stop condition, and goes into the slave mode after the completion of
transmission.
Goes into the master mode, generates the start condition, and starts transferring.
Acknowledgement is disabled to be generated.
Acknowledgement is enabled to be generated.
Acknowledgement is disabled to be generated
Acknowledgement is enabled to be generated.
Disables the interrupt.
Enables the interrupt.
FUJITSU MICROELECTRONICS LIMITED
MB90335 Series
CM44-10137-6E
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