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Control Registers
Chapter 12 Serial Interface 3
XII - 8
Serial Interface 3 Control Register (SC3CTR)
Figure 12-2-4 Serial Interface 3 Control Register (SC3CTR : x'03FAA', R/W)
0124
567
3
(At reset: 0 0 - - 0 0 0 0 )
SC3CTR
SC3ACKOSC3ACKSSC3CMDSC3REX
-
-
SC3STCIICBSY
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.