Renesas M16C Series User Manual page 200

M30240 Group
UARTi transmit/receive mode register
b7 b6 b5 b4 b3 b2 b1 b0
UART2 transmit/receive mode register
b7 b6 b5 b4 b3 b2 b1 b0
Figure 2.41: Serial I/O related register (2)
Rev.1.00 Sep 24, 2003 Page 182 of 360
Symbol
UiMR(i=0,1)
Bit
Bit name
symbol
SMD0
Serial I/O mode select bit
SMD1
SMD2
CKDIR Internal/external clock
select bit
STPS
Stop bit length select bit
PRY
Odd/even parity select bit
PRYE
Parity enable bit
SLEP Sleep select bit
Symbol
U2MR
Bit
Bit name
symbol
SMD0
Serial I/O mode select bit
SMD1
SMD2
CKDIR Internal/external clock
select bit
STPS
Stop bit length select bit
PRY
Odd/even parity select bit
PRYE Parity enable bit
TxD, RxD I/O polarity
IOPOL
reverse bit
Address
03A0 , 03A8
16 16
Function
(During clock synchronous
(During UART mode)
serial I/O mode)
Must be fixed to 001
b2 b1 b0
1 0 0 : Transfer data 7 bits long
b2 b1 b0
1 0 1 : Transfer data 8 bits long
0 0 0 : Serial I/O invalid
1 1 0 : Transfer data 9 bits long
0 1 0 : Inhibited
0 0 0 : Serial I/O invalid
0 1 1 : Inhibited
0 1 0 : Inhibited
1 1 1 : Inhibited
0 1 1 : Inhibited
1 1 1 : Inhibited
0 : Internal clock 0 : Internal clock
1 : External clock 1 : External clock
0 : One stop bit
Invalid
1 : Two stop bits
Valid when bit 6 = "1"
Invalid
0 : Odd parity
1 : Even parity
0 : Parity disabled
Invalid
1 : Parity enabled
0 : Sleep mode deselected
Must always be "0"
1 : Sleep mode selected
Address
0378
16
Function
(During clock synchronous
(During UART mode)
serial I/O mode)
b2 b1 b0
Must be fixed to 001
1 0 0 : Transfer data 7 bits long
b2 b1 b0
1 0 1 : Transfer data 8 bits long
0 0 0 : Serial I/O invalid
1 1 0 : Transfer data 9 bits long
0 1 0 : Inhibited
0 0 0 : Serial I/O invalid
0 1 1 : Inhibited
0 1 0 : Inhibited
1 1 1 : Inhibited
0 1 1 : Inhibited
1 1 1 : Inhibited
0 : Internal clock
Must always be set to "0"
1 : External clock
0 : One stop bit
Invalid
1 : Two stop bits
Valid when bit 6 = "1"
Invalid
0 : Odd parity
1 : Even parity
0 : Parity disabled
Invalid
1 : Parity enabled
0 : No reverse 0 : No reverse
1 : Reverse 1 : Reverse
Usually set to "0" Usually set to "0"
Clock-Synchronous Serial I/O
When reset
00
16
Function
R W
When reset
00
16
Function
R W