R5F21334CNFP#U0 Renesas Electronics America, R5F21334CNFP#U0 Datasheet - Page 346

• Manufacturer Part Number: R5F21334CNFP#U0
• Description: MCU 1KB FLASH 16K ROM 32-LQFP
• Manufacturer: Renesas Electronics America
• Series: R8C/3x/33Cr

Specifications of R5F21334CNFP#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: 27
• 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 12x10b; D/A 2x8b
• Oscillator Type: Internal
• Operating Temperature: -20°C ~ 85°C
• Package / Case: 32-LQFP
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Eeprom Size: -

R8C/33C Group
REJ09B0570-0100 Rev.1.00 Dec. 14, 2009
Page 316 of 589
Figure 21.4
Figure 21.5
21.3.2
21.3.3
transfer clock polarity.
Figure 21.5 shows the Transfer Format. Use the UFORM bit in the UiC0 (i = 0 to 1) register to select the
transfer format.
Figure 21.4 shows the Transfer Clock Polarity. Use the CKPOL bit in the UiC0 (i = 0 or 1) register to select the
Polarity Select Function
LSB First/MSB First Select Function
Transfer Clock Polarity
Transfer Format
CLKi
CLKi
• UFORM bit in UiC0 register = 0 (LSB first)
• UFORM bit in UiC0 register = 1 (MSB first)
• CKPOL bit in UiC0 register = 0 (transmit data output at the falling edge and
• CKPOL bit in UiC0 register = 1 (transmit data output at the rising edge and
RXDi
RXDi
RXDi
RXDi
TXDi
TXDi
CLKi
TXDi
CLKi
TXDi
Note:
receive data input at the rising edge of the transfer clock)
receive data input at the falling edge of the transfer clock)
Notes:
i = 0 or 1
i = 0 or 1
(1)
(2)
1. The above applies when:
1. The CLKi pin level is high during no transfer.
2. The CLKi pin level is low during no transfer.
CKPOL bit in UiC0 register = 0 (transmit data output at the falling edge and
receive data input at the rising edge of the transfer clock).
D0
D0
D7
D7
D0
D0
D0
D0
D1
D1
D6
D6
D1
D1
D1
D1
D2
D2
D5
D5
D2
D2
D2
D2
D3
D3
D4
D4
D3
D3
D3
D3
(1)
(1)
D4
D4
D3
D3
D4
D4
D4
D4
D5
D5
D2
D2
D5
D5
D5
D5
21. Serial Interface (UARTi (i = 0 or 1))
D6
D6
D1
D1
D6
D6
D6
D6
D0
D7
D7
D0
D7
D7
D7
D7