R5F21324CNSP#U0 Renesas Electronics America, R5F21324CNSP#U0 Datasheet - Page 324

• Manufacturer Part Number: R5F21324CNSP#U0
• Description: MCU 1KB FLASH 16K ROM 20-LSSOP
• Manufacturer: Renesas Electronics America
• Series: R8C/3x/32Cr

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: -

R8C/32C Group
REJ09B0573-0100 Rev.1.00 Dec. 18, 2009
Page 295 of 573
21.2
21.2.1
21.2.2
b7 to b0 If the setting value is n, U0BRG divides the count source by n+1.
After Reset
After Reset
Bit
b0
b1
b2
b3
b4
b5
b6
b7
Bit
Address 00A0h
Symbol
Address 00A1h
Write to the U0BRG register while transmission and reception stop.
Use the MOV instruction to write to this register.
Set bits CLK0 and CLK1 in the U0C0 register before writing to the U0BRG register.
Symbol
Registers
Bit
Symbol
CKDIR
SMD0
SMD1
SMD2
PRYE
Bit
STPS
PRY
UART0 Transmit/Receive Mode Register (U0MR)
UART0 Bit Rate Register (U0BRG)
—
b7
—
0
b7
—
X
Serial I/O mode select bit
Internal/external clock select bit
Stop bit length select bit
Odd/even parity select bit
Parity enable bit
Reserved bit
PRYE
b6
0
b6
—
X
Bit Name
PRY
b5
0
b5
—
X
Function
STPS
b4
0
b4
—
X
CKDIR
b2 b1 b0
Other than above: Do not set.
0: Internal clock
1: External clock
0: One stop bit
1: Two stop bits
Enabled when PRYE = 1
0: Odd parity
1: Even parity
0: Parity disabled
1: Parity enabled
Set to 0.
0 0 0: Serial interface disabled
0 0 1: Clock synchronous serial I/O mode
1 0 0: UART mode, transfer data 7 bits long
1 0 1: UART mode, transfer data 8 bits long
1 1 0: UART mode, transfer data 9 bits long
b3
0
b3
—
X
SMD2
b2
0
b2
—
X
SMD1
Function
b1
b1
0
—
X
00h to FFh
21. Serial Interface (UART0)
Setting Range
SMD0
b0
b0
—
0
X
R/W
R/W
R/W
R/W
R/W
R/W
R/W
R/W
R/W
R/W
W