M16C30P_07 Datasheet, PDF (165/317 Pages) Renesas Technology Corp – 16-BIT SINGLE-CHIP MICROCOMPUTER M16C FAMILY / M16C/30 SERIES

M16C/30P Group
15. Serial Interface
Table 15.12 Registers to Be Used and Settings in I²C Mode (2)
Register
Bit
Function
UiSMR3
UiSMR4
IFSR2A
UCON
Master
Slave
0, 2, 4 and NODC Set to “0”
Set to “0”
CKPH
See Table 15.13 I²C Mode Functions See Table 15.13 I²C Mode Functions
DL2 to DL0
Set the amount of SDAi digital delay
Set the amount of SDAi digital delay
STAREQ
Set this bit to “1” to generate start
condition
Set to “0”
RSTAREQ
Set this bit to “1” to generate restart
condition
Set to “0”
STPREQ
Set this bit to “1” to generate stop
condition
Set to “0”
STSPSEL
Set this bit to “1” to output each condition Set to “0”
ACKD
Select ACK or NACK
Select ACK or NACK
ACKC
Set this bit to “1” to output ACK data
Set this bit to “1” to output ACK data
SCLHI
Set this bit to “1” to have SCLi output
Set to “0”
stopped when stop condition is detected
SWC9
Set to “0”
Set this bit to “1” to set the SCLi to “L” hold
at the falling edge of the 9th bit of clock
IFSR26, ISFR27 Set to “1”
Set to “1”
U0IRS, U1IRS Invalid
Invalid
U0RRM, U1RRM Set to “0”
Set to "0"
CLKMD0
Set to "0"
Set to "0"
CLKMD1
Set to "0"
Set to "0"
RCSP
Set to "0"
Set to "0"
7
Set to "0"
Set to "0"
i=0 to 2
Rev.1.22 Mar 29, 2007 Page 149 of 291
REJ09B0179-0122