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Control Registers

Chapter 12    Serial Interface 3

XII - 8

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Serial Interface 3 Control Register (SC3CTR)

0

1

2

4

5

6

7

3

(At reset: 0 0 - - 0 0 0 0 )

SC3CTR

SC3ACKO

SC3ACKS

SC3CMD

SC3REX

-

-

SC3STC

IICBSY

0

1

Transmission

(at IIC communication)
transmission / reception 
mode selection

Reception

SC3REX

0

1

No detection

(at IIC communication)
start condition detection

Detection

SC3STC

0

1

"L" level

ACK bit level specification

"H" level

SC3ACKO

0

1

ACK bit is disabled

ACK bit enable 

ACK bit is enabled

SC3ACKS

0

1

Clock synchronous 

 Clock synchronous /
 IIC selection

IIC selection

SC3CMD

0

1

Other use

(at IIC communication)
Serial bus status

Serial transmission in progress

IICBSY (*)

* at writing "0", stop condition is generated.