M16C26A Datasheet, PDF (178/352 Pages) Renesas Technology Corp – 16-BIT SINGLE-CHIP MICROCOMPUTER M16C FAMILY / M16C/Tiny SERIES

M16C/26A Group (M16C/26A, M16C/26B, M16C/26T)
13. Serial I/O
Table 13.1.3.3. Registers to Be Used and Settings in I²C bus Mode ⁽²⁾ (Continued)
Register
Bit
U2SMR4 STAREQ
RSTAREQ
STPREQ
STSPSEL
ACKD
ACKC
SCLHI
SWC9
Function
Master
Slave
Set this bit to “1” to generate start
Set to “0”
condition
Set this bit to “1” to generate restart
Set to “0”
condition
Set this bit to “1” to generate stop
Set to “0”
condition
Set this bit to “1” to output each condition Set to “0”
Select ACK or NACK
Select ACK or NACK
Set this bit to “1” to output ACK data
Set this bit to “1” to output ACK data
Set this bit to “1” to have SCL2 output Set to “0”
stopped when stop condition is detected
Set to “0”
Set this bit to “1” to set the SCL2 to “L”
hold at the falling edge of the 9th bit of
clock
NOTE:
1. Not all bits in the register are described above. Set those bits to “0” when writing to the registers in I²C
bus mode.
Rev. 2.00 Feb.15, 2007 page 161 of 329
REJ09B0202-0200