R5F21294SNSP#U0 Renesas Electronics America, R5F21294SNSP#U0 Datasheet - Page 260

• Manufacturer Part Number: R5F21294SNSP#U0
• Description: MCU 3/5V 16K+2K 20PIN-SSOP
• Manufacturer: Renesas Electronics America
• Series: M16C™ M16C/R8C/Tiny/29r

Specifications of R5F21294SNSP#U0

• Core Processor: R8C
• Core Size: 16-Bit
• Speed: 20MHz
• Connectivity: I²C, LIN, SIO, SSU, UART/USART
• Peripherals: LED, POR, Voltage Detect, WDT
• Number Of I /o: 13
• Program Memory Size: 16KB (16K x 8)
• Program Memory Type: FLASH
• Ram Size: 1K x 8
• Voltage - Supply (vcc/vdd): 2.2 V ~ 5.5 V
• Data Converters: A/D 4x10b
• Oscillator Type: Internal
• Operating Temperature: -20°C ~ 85°C
• Package / Case: 20-SSOP
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Eeprom Size: -

R8C/28 Group, R8C/29 Group
Rev.2.10
REJ09B0279-0210
Figure 15.9
Figure 15.10
15.1.1
15.1.2
clock polarity.
Figure 15.10 shows the Transfer Format. Use the UFORM bit in the U0C0 register to select the transfer format.
Figure 15.9 shows the Transfer Clock Polarity. Use the CKPOL bit in the U0C0 register to select the transfer
Sep 26, 2008
Polarity Select Function
LSB First/MSB First Select Function
CLK0
CLK0
• When UFORM bit in U0C0 register = 0 (LSB first)
• When UFORM bit in U0C0 register = 1 (MSB first)
• When the CKPOL bit in the U0C0 register = 0 (output transmit data at the falling
• When the CKPOL bit in the U0C0 register = 1 (output transmit data at the rising
RXD0
RXD0
RXD0
RXD0
CLK0
CLK0
TXD0
TXD0
TXD0
TXD0
Transfer Clock Polarity
Transfer Format
edge and input receive data at the rising edge of the transfer clock)
edge and input receive data at the falling edge of the transfer clock)
NOTE:
NOTES:
(1)
(2)
1. When not transferring, the CLK0 pin level is “H”.
2. When not transferring, the CLK0 pin level is “L”.
1. The above applies when the CKPOL bit in the U0C0 register is
set to 0 (output transmit data at the falling edge and input receive
data at the rising edge of the transfer clock).
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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
D4
D4
D3
D3
D4
D4
D4
D4
(1)
(1)
D5
D5
D2
D2
D5
D5
D5
D5
D1
D6
D6
D1
D6
D6
D6
D6
D7
D7
D0
D0
D7
D7
D7
D7
15. Serial Interface