RL78/G10 CHAPTER 12 SERIAL ARRAY UNIT
R01UH0384EJ0311 Rev. 3.11 396
Dec 22, 2016
(1) Register setting
Figure 12-90. Example of Contents of Registers for Data Transmission of Simplified I
2
C (IIC00) (1/2)
(a) Serial mode register 0n (SMR0nH, SMR0nL) … Do not manipulate this register during data
transmission/reception.
Symbol: SMR0nH Symbol: SMR0nL
15 14 13 12 11 10 9 8 7 6 5 4 3 2 1 0
CKS0n
0/1
CCS0n
0
0
0
0
0
0
STS0n
0
0
SIS0n0
0
1
0
0
0
MD0n1
0
MD0n0
0
(b) Serial communication operation setting register 0n (SCR0nH, SCR0nL) … Do not manipulate the bits of
this register, except the
TXE0n and RXE0n bits,
during data
transmission/reception.
Symbol: SCR0nH Symbol: SCR0nL
15 14 13 12 11 10 9 8 7 6 5 4 3 2 1
TXE0n
1
RXE0n
0
DAP0n
0
CKP0n
0
0
EOC0n
0
PTC0n1
0
PTC0n0
0
DIR0n
0
0
SLC0n1
0
SLC0n0
1
0
1
1
DLS0n0
1
(c) Serial data register 0n (SDR0nH, SDR0nL) …During data transmission/reception, valid only lower 8-bits
(SIOr)
Symbol: SDR0nH Symbol: SDR0nL
7 6 5 4 3 2 1 0 7 6 5 4 3 2 1 0
Baud rate setting
0
Transmit data setting
(d) Serial clock output register 0 (CKO0) … Do not manipulate this register during data
transmission/reception.
(e) Serial output register 0 (SO0) … Do not manipulate this register during data
transmission/reception.
Notes 1. 16-pin products only.
2. The values may change during operation, depending on the communication data.
(Remarks are listed on the next page.)
Symbol: 7 6 5 4 3 2 1 0
CKO0
0
0
0
0
0
0
CKO01
Note 1
×
CKO00
0/1
Symbol: 7 6 5 4 3 2 1 0
SO0
0
0
0
0
0
0
SO01
Note 1
×
SO00
0/1
Note 2
SIOr
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