M16C26 Datasheet, PDF (128/239 Pages) Renesas Technology Corp – 16-BIT CMOS SINGLE-CHIP MICROCOMPUTER M16C FAMILY / M16C/20 SERIES

Udenvdeelropment
Preliminary Specifications Rev. 0.9
Specifications in this manual are tentative
Clock Synchronous Serial I/O Mode
and
subject to change.
SINGLE-CHIP 16-BIT
M16C/26 Group
CMOS MICROCOMPUTER
UARTi transmit/receive mode register (i=0 to 1)
b7 b6 b5 b4 b3 b2 b1 b0
0
001
Symbol
UiMR(i=0 to 1)
Address
03A016, 03A816
When reset
0016
Bit symbol
Bit name
Function
SMD0
SMD1
SMD2
Serial I/O mode select bit
b2 b1 b0
0 0 1 : Clock synchronous serial
I/O mode
CKDIR
STPS
PRY
PRYE
Internal/external clock
select bit
0 : Internal clock
1 : External clock (Note)
Invalid in clock synchronous serial I/O mode
Reserved Must always be "0".
Note: Set the corresponding port direction register to "0".
RW
UART2 transmit/receive mode register
b7 b6 b5 b4 b3 b2 b1 b0
0
001
Symbol
U2MR
Address
0378 16
When reset
0016
Bit symbol
Bit name
Function
SMD0
SMD1
SMD2
Serial I/O mode select bit
b2 b1 b0
0 0 1 : Clock synchronous serial
I/O mode
CKDIR
Internal/external clock
select bit
0 : Internal clock
1 : External clock (Note 2)
STPS
PRY
PRYE
Invalid in clock synchronous serial I/O mode
IOPOL
TxD, RxD I/O polarity
reverse bit (Note 1)
0 : No reverse
1 : Reverse
Note 1: Usually set to 0 .
Note 2: Set the corresponding port direction register to 0 .
RW
Figure 1.15.11. UARTi transmit/receive mode register in clock synchronous serial I/O mode
122
Renesas Technology Corp.