R5F21346CNFP#U0 Renesas Electronics America, R5F21346CNFP#U0 Datasheet - Page 485

• 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 452 of 723
Figure 22.7
• Receive Timing Example When Transfer Data is 8 Bits Long (Parity Disabled, One Stop Bit)
UiBRG output
Transfer clock
SiRIC register
UiC1 register
UiC1 register
RE bit in
RI bit in
IR bit in
RXDi
The above applies when :
Receive Timing in UART Mode
• PRYE bit in UiMR register = 0 (parity disabled)
• STPS bit in UiMR register = 0 (one stop bit)
i = 0 or 1
Reception starts when a transfer clock is
generated at the falling edge of the start bit.
Start bit
“L” is determined.
D0
Set to 0 when an interrupt request is acknowledged or by a program.
Receive data taken in
D1
Data transfer from UARTi receive register to UiRB register
22. Serial Interface (UARTi (i = 0 or 1))
D7
Stop bit