r5f21346mnfp Renesas Electronics Corporation., r5f21346mnfp Datasheet - Page 113
r5f21346mnfp
Manufacturer Part Number
r5f21346mnfp
Description
Single-chip Mcus Incorporates The R8c Cpu Core
Manufacturer
Renesas Electronics Corporation.
Datasheet
1.R5F21346MNFP.pdf
(776 pages)
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Part Number:
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Renesas Electronics America
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R8C/34M Group
R01UH0131EJ0100 Rev.1.00
Jun 21, 2011
7.4.12
7.4.13
After Reset
After Reset
Bit
b0
b1
b2
b3
b4
b5
b6
b7
Bit
b0
b1
b2
b3
b4
b5
b6
b7
Address 018Ah
Address 018Bh
The U2SR0 register selects 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 UART2 associated registers. Also, do not change the setting value in
this register during UART2 operation.
The U2SR1 register selects which pin is assigned to the UART2 I/O. To use the I/O pin for UART2, set this
register.
Set the U2SR1 register before setting the UART2 associated registers. Also, do not change the setting value in
this register during UART2 operation.
Symbol
Symbol
RXD2SEL0 RXD2/SCL2 pin select bit
RXD2SEL1
TXD2SEL0 TXD2/SDA2 pin select bit
TXD2SEL1
TXD2SEL2
CLK2SEL0 CLK2 pin select bit
CLK2SEL1
CTS2SEL0 CTS2/RTS2 pin select bit
Bit
Bit
Symbol
Symbol
UART2 Pin Select Register 0 (U2SR0)
UART2 Pin Select Register 1 (U2SR1)
—
—
—
—
—
—
—
—
b7
b7
—
—
0
0
Nothing is assigned. If necessary, set to 0. When read, the content is 0.
Reserved bit
Nothing is assigned. If necessary, set to 0. When read, the content is 0.
Nothing is assigned. If necessary, set to 0. When read, the content is 0.
Reserved bit
Nothing is assigned. If necessary, set to 0. When read, the content is 0.
b6
b6
—
—
0
0
RXD2SEL1 RXD2SEL0
Bit Name
Bit Name
b5
—
b5
0
0
CTS2SEL0
b4
0
b4
0
b2 b1 b0
b5 b4
Set to 0.
b1 b0
0: CTS2/RTS2 pin not used
1: P3_3 assigned
Set to 0.
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
1 1 0: Do not set.
1 1 1: Do not set.
0 0: RXD2/SCL2 pin not used
0 1: P3_4 assigned
1 0: P3_7 assigned
1 1: P4_5 assigned
0 0: CLK2 pin not used
0 1: P3_5 assigned
1 0: Do not set.
1 1: P6_5 assigned
b3
—
0
b3
—
0
TXD2SEL2 TXD2SEL1 TXD2SEL0
b2
—
0
b2
0
CLK2SEL1 CLK2SEL0
Function
Function
b1
0
b1
0
b0
0
b0
0
Page 81 of 740
7. I/O Ports
R/W
R/W
R/W
R/W
R/W
R/W
R/W
R/W
R/W
R/W
R/W
R/W
—
—
—
—
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