R5F21238DFP#U0 Renesas Electronics America, R5F21238DFP#U0 Datasheet - Page 300

• Manufacturer Part Number: R5F21238DFP#U0
• Description: IC R8C/23 MCU FLASH 48-LQFP
• Manufacturer: Renesas Electronics America
• Series: R8C/2x/23r

Specifications of R5F21238DFP#U0

• Core Size: 16/32-Bit
• Program Memory Size: 64KB (64K x 8)
• Peripherals: POR, Voltage Detect, WDT
• Core Processor: R8C
• Speed: 20MHz
• Connectivity: CAN, I²C, LIN, SIO, SSU, UART/USART
• Number Of I /o: 41
• Program Memory Type: FLASH
• Ram Size: 3K x 8
• Voltage - Supply (vcc/vdd): 2.7 V ~ 5.5 V
• Data Converters: A/D 12x10b
• Oscillator Type: Internal
• Operating Temperature: -40°C ~ 85°C
• Package / Case: 48-LQFP
• No. Of I/o's: 41
• Ram Memory Size: 3KB
• Cpu Speed: 20MHz
• No. Of Timers: 4
• Digital Ic Case Style: LQFP
• Embedded Interface Type: CAN, I2C, UART
• Rohs Compliant: Yes
• Cpu Family: R8C
• Device Core Size: 16b
• Frequency (max): 20MHz
• Interface Type: I2C/UART
• Total Internal Ram Size: 3KB
• # I/os (max): 41
• Number Of Timers - General Purpose: 5
• Operating Supply Voltage (typ): 3.3/5V
• Operating Supply Voltage (max): 5.5V
• Operating Supply Voltage (min): 3V
• On-chip Adc: 12-chx10-bit
• Instruction Set Architecture: CISC
• Operating Temp Range: -40C to 85C
• Operating Temperature Classification: Industrial
• Mounting: Surface Mount
• Pin Count: 48
• Package Type: LQFP
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• For Use With: RCDK8C - KIT DEV EVAL FOR CAN R8C/23R0K521237S000BE - KIT DEV RSK R8C/23R0E521237CPE00 - EMULATOR COMPACT R8C/20/21/22/23
• Eeprom Size: -
• Lead Free Status / Rohs Status: Compliant

R8C/22 Group, R8C/23 Group
Rev.2.00 Aug 20, 2008
REJ09B0251-0200
Figure 15.4
UARTi Transmit/Receive Mode Register (i = 0 or 1)
b7 b6 b5 b4
NOTES:
0
1.
2.
3.
4.
Set the PD1_6 bit in the PD1 register to 0 (input).
Do not set bits SMD2 to SMD0 in the U1MR register to any values other than 000b, 100b, 101b and 110b.
Set the CKDIR bit to 0 (internal clock) in UART1.
The SMD2 to SMD1 bits can not select clock synchronous serial I/O mode in UART1.
b3 b2 b1 b0
UiMR Register (i = 0 or 1)
Bit Symbol
Symbol
CKDIR
U0MR
U1MR
SMD0
SMD1
SMD2
PRYE
STPS
PRY
Page 278 of 501
(b7)
—
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
(3)
Address
Bit Name
00A0h
00A8h
(2,4)
b2 b1 b0
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
Other than above : Do not set
0 : Internal clock
1 : External clock
0 : 1 stop bit
1 : 2 stop bits
Enables w hen PRYE = 1
0 : Odd parity
1 : Even parity
0 : Parity disabled
1 : Parity enabled
Set to 0
(1)
After Reset
Function
00h
00h
15. Serial Interface
RW
RW
RW
RW
RW
RW
RW
RW
RW