m30262f8gp Renesas Electronics Corporation., m30262f8gp Datasheet - Page 120

• Manufacturer Part Number: m30262f8gp
• Description: Renesas 16-bit Cmos Single-chip Microcomputer M16c Family / M16c/20 Series
• Manufacturer: Renesas Electronics Corporation.

Serial I/O
114
Figure 1.15.6. Serial I/O-related registers (3)
UART2 transmit/receive mode register
b7
UART2 transmit/receive control register 0
b7
b6
b6
b5
b5
Preliminary Specifications Rev. 0.9
b4
b4
Specifications in this manual are tentative and subject to change.
b3
b3
b2
b2
b1
b1
b0
b0
Note 1: Set the corresponding port direction register to "0".
Note 2: Periperal clock select register bit PCLK1 is used to select between f
Note 3: The settings of the corresponding port register and port direction register are invalid.
Note 4: Only clock synchronous serial I/O mode and 8-bit UART mode are valid.
symbol
CKDIR
IOPOL
UFORM Transfer format select bit
SMD0
SMD1
SMD2
STPS
PRYE
CKPOL
PRY
symbol
TXEPT
CLK0
CLK1
CRS
Bit
CRD
Nothing is assigned.
In an attempt to write to this bit, write “0”. The value, if read, turns out to be “0”.
Bit
Internal/external clock
select bit
Stop bit length select bit
Odd/even parity select bit
TxD, RxD I/O polarity
reverse bit
Serial I/O mode select bit
Parity enable bit
Symbol
Symbol
(Note 4)
U2MR
U2C0
CTS/RTS function
select bit
BRG count source
select bit
Transmit register empty
flag
CTS/RTS disable bit
CLK polarity select bit
Bit name
Bit name
Renesas Technology Corp.
Address
Address
0378
037C
0 0 : f
0 1 : f
1 0 : f
1 1 : Must not be set.
b1 b0
0 0 0 : Serial I/O invalid
0 0 1 : Serial I/O
0 1 0 : I
0 1 1 :
1 1 1 :
Valid when bit 4 = "0"
0 : CTS function is selected (Note 1)
1 : RTS function is selected (Note 3)
0 : CTS/RTS function enabled
1 : CTS/RTS function disabled
0 : Transmit data is output at
1 : Transmit data is output at
0 : LSB first
1 : MSB first
b2 b1 b0
0 : Internal clock
1 : External clock (Note 1)
Invalid
Invalid
Invalid
0 : No reverse
1 : Reverse
0 : Data present in transmit
1 : No data present in transmit
(During clock synchronous
16
(During clock synchronous
16
:
register (during transmission)
register (transmission
completed)
(P6
falling edge of transfer clock
and receive data is input at
rising edge
rising edge of transfer clock
and receive data is input at
falling edge
Usually set to 0
as programmable I/O port
(Note 2)
1SIO
8SIO
32SIO
serial I/O mode)
0
serial I/O mode)
, P6
2
C mode
Must not be set
Function
or f
is selected
Function
4
is selected
and P7
2SIO
When reset
When reset
00
08
is selected
3
16
16
function
SINGLE-CHIP 16-BIT CMOS MICROCOMPUTER
)
0 0 0 : Serial I/O invalid
1 0 0 : Transfer data 7 bits long
1 0 1 : Transfer data 8 bits long
1 1 0 : Transfer data 9 bits long
Except the above : Must not be set
0 : One stop bit
1 : Two stop bits
Valid when bit 6 = 1
0 : Odd parity
1 : Even parity
0 : Parity disabled
1 : Parity enabled
0 : Internal clock
1 : External clock (Note 1)
0 : No reverse
1 : Reverse
b2 b1 b0
b1 b0
0 0 : f
0 1 : f
1 0 : f
1 1 : Must not be set.
Valid when bit 4 = "0"
0 : CTS function is selected (Note 1)
1 : RTS function is selected (Note 3)
0 : CTS/RTS function enabled
1 : CTS/RTS function disabled
0 : LSB first
1 : MSB first
0 : Data present in transmit register
1 : No data present in transmit
Must always be "0"
Usually set to 0
(during transmission)
register (transmission completed)
(P6
as programmable I/O port)
(During UART mode)
(Note 2)
(During UART mode)
1SIO
8SIO
32SIO
0
1SIO
, P6
or f
is selected
4
and f
is selected
Function
and P7
Function
2SIO
2SIO
is selected
3
M16C/26 Group
function
.
R
R
W
W