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Serial I/O shift registers L0, L1 (SIOL0, SIOL1)
The SIOLn register is an 8-bit shift register that converts parallel data into serial data (n = 0, 1).
The transfer operation is not started even if the SIOLn register is read.
These registers are read-only, in 8-bit or 1-bit units.
In addition to reset input, this register can also be initialized by clearing (0) the CSICAEn bit of the CSIMn
register.
The SIOLn register is the same as the lower bytes of the SIOn register.
Caution Access the SIOLn register only when the 8-bit data length has been set (CCL bit of
CSIMn register = 0), and only in the idle state (CSOTn bit of CSIMn register = 0). If the
SIOLn register is accessed during data transfer, the data cannot be guaranteed.
7
6
SIOL0
SIO7
SIO6
7
6
SIOL1
SIO7
SIO6
Bit position
Bit name
7 to 0
SIO7 to SIO0
CHAPTER 10 SERIAL INTERFACE FUNCTION
5
4
3
SIO5
SIO4
SIO3
5
4
3
SIO5
SIO4
SIO3
Data is shifted in (reception) or shifted out (transmission) from the MSB or LSB
side.
User's Manual U15195EJ5V0UD
2
1
0
SIO2
SIO1
SIO0
2
1
0
SIO2
SIO1
SIO0
Function
Address
After reset
FFFFF90AH
00H
Address
After reset
FFFFF91AH
00H
491
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