R5F21324ANSP#U1 Renesas Electronics America, R5F21324ANSP#U1 Datasheet - Page 334

• Manufacturer Part Number: R5F21324ANSP#U1
• Description: MCU 1KB FLASH 16K ROM 20-LSSOP
• Manufacturer: Renesas Electronics America
• Series: R8C/3x/32Ar

Specifications of R5F21324ANSP#U1

• 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: 15
• 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 4x10b
• Oscillator Type: Internal
• Operating Temperature: -20°C ~ 85°C
• Package / Case: 20-LSSOP
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Eeprom Size: -

Under development
R8C/32A Group
REJ09B0458-0020 Rev.0.20
Page 304 of 583
Figure 21.4
Figure 21.5
21.3.2
21.3.3
clock polarity.
Figure 21.5 shows the Transfer Format. Use the UFORM bit in the U0C0 register to select the transfer format.
Figure 21.4 shows the Transfer Clock Polarity. Use the CKPOL bit in the U0C0 register to select the transfer
Polarity Select Function
LSB First/MSB First Select Function
Preliminary specification
Specifications in this manual are tentative and subject to change.
Transfer Clock Polarity
Transfer Format
CLK0
CLK0
• UFORM bit in U0C0 register = 0 (LSB first)
• UFORM bit in U0C0 register = 1 (MSB first)
RXD0
RXD0
• CKPOL bit in U0C0 register = 0 (transmit data output at the falling edge and
• CKPOL bit in U0C0 register = 1 (transmit data output at the rising edge and
CLK0
CLK0
TXD0
TXD0
RXD0
RXD0
TXD0
TXD0
Note:
receive data input at the rising edge of the transfer clock)
receive data input at the falling edge of the transfer clock)
Notes:
1. The above applies when:
(1)
(2)
1. The CLK0 pin level is high during no transfer.
2. The CLK0 pin level is low during no transfer.
CKPOL bit in U0C0 register = 0 (transmit data output at the falling edge and
receive data input at the rising edge of the transfer clock).
Nov 05, 2008
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
D6
D6
D1
D1
D6
D6
D6
D6
D0
D7
D7
D0
D7
D7
D7
D7
21. Serial Interface (UART0)