R5F21346CNFP#U0 Renesas Electronics America, R5F21346CNFP#U0 Datasheet - Page 468

• Manufacturer Part Number: R5F21346CNFP#U0
• Description: MCU 1KB FLASH 32K ROM 48-LQFP
• Manufacturer: Renesas Electronics America
• Series: R8C/3x/34Cr

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: -

R8C/34C Group
REJ09B0586-0100 Rev.1.00 Jan 13, 2010
Page 435 of 723
Figure 22.2
RXDi
Table 22.1
TXD0
RXD0
CLK0
TXD1
RXD1
CLK1
Pin Name
SP
SP
Pin Configuration of UARTi (i = 0 or 1)
2SP
Block Diagram of UARTi Transmit/Receive Unit
1SP
SP
P1_4
P1_5
P1_6
P0_1 or P6_3
P0_2 or P6_4
P0_3, P6_2, or P6_5
2SP
1SP
SP
Assigned Pin
PAR
PAR
0
PAR enabled
PRYE = 1
PRYE = 1
PAR enabled
0
PAR
disabled
PRYE = 0
PRYE = 0
PAR
disabled
0
0
Clock
synchronous
type
Clock
synchronous
type
0
UART
UART
0
0
Output
Output
UART (9 bits)
Input
Input
0
UART (9 bits)
I/O
I/O
I/O
Clock
synchronous
type
UART (7 bits)
UART (8 bits)
UART (7 bits)
UART (8 bits)
Clock
synchronous
type
D8
D8
Data bus low-order bits
Data bus high-order bits
UART (8 bits)
UART (9 bits)
Clock
synchronous
type
UART (8 bits)
UART (9 bits)
Clock
synchronous
type
Serial data output
Serial data input
Transfer clock I/O
Serial data output
Serial data input
Transfer clock I/O
UART (7 bits)
UART (7 bits)
D7
D7
22. Serial Interface (UARTi (i = 0 or 1))
D6
D6
MSB/LSB conversion circuit
MSB/LSB conversion circuit
D5
D5
i = 0 or 1
SP: Stop bit
PAR: Parity bit
UARTi transmit register
D4
D4
UARTi receive register
Function
D3
D3
D2
D2
D1
D1
D0
D0
UiRB register
UiTB register
TXDi