M306H7MG-XXXFP Datasheet, PDF (134/329 Pages) Renesas Technology Corp – SINGLE-CHIP 16-BIT CMOS MICROCOMPUTER with DATA ACQUISITION CONTROLLER

M306H7MG-XXXFP/MC-XXXFP/FGFP
10. SERIAL I/O
Table 10.18 Registers to Be Used and Settings in SIM Mode
Register
Bit
Function
U2TB(Note)
U2RB(Note)
U2BRG
U2MR
0 to 7
Set transmission data
0 to 7
Reception data can be read
OER,FER,PER,SUM Error flag
0 to 7
Set a transfer rate
SMD2 to SMD0 Set to ‘1012’
CKDIR
Select the internal clock or external clock
STPS
Set to “0”
PRY
Set this bit to “1” for direct format or “0” for inverse format
PRYE
Set to “1”
IOPOL
Set to “0”
U2C0
CLK1, CLK0
Select the count source for the U2BRG register
CRS
Invalid because CRD=1
TXEPT
Transmit register empty flag
CRD
Set to “1”
NCH
Set to “0”
CKPOL
Set to “0”
UFORM
Set this bit to “0” for direct format or “1” for inverse format
U2C1
TE
Set this bit to “1” to enable transmission
TI
Transmit buffer empty flag
RE
Set this bit to “1” to enable reception
RI
Reception complete flag
U2IRS
Set to “1”
U2RRM
Set to “0”
U2LCH
Set this bit to “0” for direct format or “1” for inverse format
U2ERE
Set to “1”
U2SMR(Note) 0 to 3
Set to “0”
U2SMR2 0 to 7
Set to “0”
U2SMR3 0 to 7
Set to “0”
U2SMR4 0 to 7
Set to “0”
Note: Not all register bits are described above. Set those bits to “0” when writing to the registers in SIM mode.
Rev.2.10 Oct 25, 2006 Page 134 of 326
REJ03B0152-0210