R5F21346CNFP#U0 Renesas Electronics America, R5F21346CNFP#U0 Datasheet - Page 499
R5F21346CNFP#U0
Manufacturer Part Number
R5F21346CNFP#U0
Description
MCU 1KB FLASH 32K ROM 48-LQFP
Manufacturer
Renesas Electronics America
Series
R8C/3x/34Cr
Datasheet
1.R5F21346CNFPU0.pdf
(759 pages)
Specifications of R5F21346CNFP#U0
Core Processor
R8C
Core Size
16/32-Bit
Speed
20MHz
Connectivity
I²C, LIN, SIO, SSU, UART/USART
Peripherals
POR, PWM, Voltage Detect, WDT
Number Of I /o
43
Program Memory Size
32KB (32K x 8)
Program Memory Type
FLASH
Ram Size
2.5K x 8
Voltage - Supply (vcc/vdd)
1.8 V ~ 5.5 V
Data Converters
A/D 12x10b; D/A 2x8b
Oscillator Type
Internal
Operating Temperature
-20°C ~ 85°C
Package / Case
48-LQFP
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
Eeprom Size
-
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R8C/34C Group
REJ09B0586-0100 Rev.1.00 Jan 13, 2010
Page 466 of 723
23.2.13 UART2 Pin Select Register 0 (U2SR0)
23.2.14 UART2 Pin Select Register 1 (U2SR1)
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
—
—
—
—
—
—
—
—
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
23. Serial Interface (UART2)
b0
0
b0
0
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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