R5F21324CNSP#U0 Renesas Electronics America, R5F21324CNSP#U0 Datasheet - Page 98
R5F21324CNSP#U0
Manufacturer Part Number
R5F21324CNSP#U0
Description
MCU 1KB FLASH 16K ROM 20-LSSOP
Manufacturer
Renesas Electronics America
Series
R8C/3x/32Cr
Datasheet
1.R5F21321CDSPU0.pdf
(605 pages)
Specifications of R5F21324CNSP#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
15
Program Memory Size
16KB (16K x 8)
Program Memory Type
FLASH
Ram Size
1.5K x 8
Voltage - Supply (vcc/vdd)
1.8 V ~ 5.5 V
Data Converters
A/D 4x10b
Oscillator Type
Internal
Operating Temperature
-20°C ~ 85°C
Package / Case
20-LSSOP
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
Eeprom Size
-
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R8C/32C Group
REJ09B0573-0100 Rev.1.00 Dec. 18, 2009
Page 69 of 573
7.4.7
After Reset
Bit
b0
b1
b2
b3
b4
b5
b6
b7
Address 0188h
The U0SR register selects which pin is assigned to the UART0 I/O. To use the I/O pin for UART0, set this
register.
Set the U0SR register before setting the UART0 associated registers. Also, do not change the setting value in
this register during UART0 operation.
Symbol
RXD0SEL0 RXD0 pin select bit
TXD0SEL0 TXD0 pin select bit
CLK0SEL0 CLK0 pin select bit
Bit
Symbol
UART0 Pin Select Register (U0SR)
—
—
—
—
—
b7
—
0
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.
Nothing is assigned. If necessary, set to 0. When read, the content is 0.
b6
—
0
Bit Name
b5
—
0
CLK0SEL0
b4
0
0: TXD0 pin not used
1: P1_4 assigned
0: RXD0 pin not used
1: P1_5 assigned
0: CLK0 pin not used
1: P1_6 assigned
b3
—
0
RXD0SEL0
b2
0
Function
b1
—
0
TXD0SEL0
b0
0
7. I/O Ports
R/W
R/W
R/W
R/W
—
—
—
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