r5f21368sdfp Renesas Electronics Corporation., r5f21368sdfp Datasheet - Page 237

• Manufacturer Part Number: r5f21368sdfp
• Description: Renesas Mcu R8c Family / R8c/3xt-a Series
• Manufacturer: Renesas Electronics Corporation.

Under development
R8C/36T-A Group
R01UH0240EJ0001 Rev.0.01
Apr 28, 2011
14.5.8
After Reset
Bit
b0
b1
b2
b3
b4
b5
b6
b7
Address 002B2h
The U2SR0 register is used to select which pin is assigned to the UART2 I/O. To use the I/O pin for UART2, set
this register.
Set the U2SR0 register before setting the registers associated with UART2. Also, do not change the set value of
this register during UART2 operation.
Symbol
RXD2SEL0 RXD2/SCL2 pin select bits
RXD2SEL1
RXD2SEL2
TXD2SEL0 TXD2/SDA2 pin select bits
TXD2SEL1
TXD2SEL2
Bit
Symbol
UART2 Pin Select Register 0 (U2SR0)
—
—
Preliminary document
Specifications in this document are tentative and subject to change.
b7
—
0
Nothing is assigned. The write value must be 0. The read value is 0.
Nothing is assigned. The write value must be 0. The read value is 0.
RXD2SEL2 RXD2SEL1 RXD2SEL0
b6
0
Bit Name
b5
0
b4
0
Other than the above: Do not set.
Other than the above: Do not set.
b2 b1 b0
b6 b5 b4
0 0 0: TXD2/SDA2 pin not used
0 0 1: P3_7 assigned
0 1 0: P3_4 assigned
0 1 1: Do not set.
1 0 0: Do not set.
1 0 1: P6_6 assigned
0 0 0: RXD2/SCL2 pin not used
0 0 1: P3_4 assigned
0 1 0: P3_7 assigned
0 1 1: P4_5 assigned
b3
—
0
TXD2SEL2 TXD2SEL1 TXD2SEL0
b2
0
Function
b1
0
b0
0
Page 206 of 725
14. I/O Ports
R/W
R/W
R/W
R/W
R/W
R/W
R/W
—
—