R5F21162SP#U0 Renesas Electronics America, R5F21162SP#U0 Datasheet - Page 140

• Manufacturer Part Number: R5F21162SP#U0
• Description: IC R8C MCU FLASH 8K 20SSOP
• Manufacturer: Renesas Electronics America
• Series: M16C™ M16C/R8C/Tiny/16r

Specifications of R5F21162SP#U0

• Core Processor: R8C
• Core Size: 16-Bit
• Speed: 20MHz
• Connectivity: I²C, SIO, UART/USART
• Peripherals: LED, POR, Voltage Detect, WDT
• Number Of I /o: 13
• Program Memory Size: 8KB (8K x 8)
• Program Memory Type: FLASH
• Ram Size: 512 x 8
• Voltage - Supply (vcc/vdd): 2.7 V ~ 5.5 V
• Data Converters: A/D 4x10b
• Oscillator Type: Internal
• Operating Temperature: -20°C ~ 85°C
• Package / Case: 20-SSOP
• For Use With: R0K521134S000BE - KIT EVAL STARTER FOR R8C/13
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Eeprom Size: -

R8C/16 Group, R8C/17 Group
Rev.2.10
REJ09B0169-0210
14. Serial Interface
Serial interface is configured with one channel: UART0. UART0 has an exclusive timer to generate a
transfer clock.
Figure 14.1 shows a UART0 Block Diagram. Figure 14.2 shows a UART0 Transmit/Receive Unit.
UART0 has two modes: clock synchronous serial I/O mode, and clock asynchronous serial I/O mode (UART
mode).
Figures 14.3 to 14.5 show the UART0-associated registers.
Figure 14.1
(UART0)
RXD0
CLK0
CLK1 to CLK0=00b
f32
f1
f8
Jan 19, 2006
reversing
polarity
=01b
=10b
circuit
CLK
UART0 Block Diagram
Clock synchronous type
(when internal clock is selected)
CKDIR=0
Internal
External
CKDIR=1
Page 125 of 254
U0BRG register
1/(n0+1)
1/16
1/16
1/2
Clock synchronous type
(when internal clock is selected)
Clock synchronous type
(when external clock is selected)
UART reception
UART transmission
synchronous type
synchronous type
Clock
Clock
Reception control
Transmission
control circuit
CKDIR=0
CKDIR=1
circuit
Receive
clock
Transmit
clock
Transmit/
receive
unit
14. Serial Interface
TXD0