R5F21346CNFP#U0 Renesas Electronics America, R5F21346CNFP#U0 Datasheet - Page 487

• 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 454 of 723
22.4.2
If communication is aborted or a communication error occurs while transmitting or receiving in UART mode,
follow the procedures below:
(1) Set the TE bit in the UiC1 register (i = 0 or 1) to 0 (transmission disabled) and the RE bit to 0 (reception
(2) Set bits SMD2 to SMD0 in the UiMR register to 000b (serial interface disabled).
(3) Set bits SMD2 to SMD0 in the UiMR register to 100b (UART mode, transfer data 7 bits long), 101b
(4) Set the TE bit in the UiC1 register to 1 (transmission enabled) and the RE bit to 1 (reception enabled).
disabled).
(UART mode, transfer data 8 bits long), or 110b (UART mode, transfer data 9 bits long).
Measure for Dealing with Communication Errors
22. Serial Interface (UARTi (i = 0 or 1))