R5F211B1SP#U0 Renesas Electronics America, R5F211B1SP#U0 Datasheet - Page 184

• Manufacturer Part Number: R5F211B1SP#U0
• Description: IC R8C MCU FLASH 4K 20SSOP
• Manufacturer: Renesas Electronics America
• Series: M16C™ M16C/R8C/Tiny/1Br

Specifications of R5F211B1SP#U0

• Core Processor: R8C
• Core Size: 16-Bit
• Speed: 20MHz
• Connectivity: I²C, SIO, SSU, UART/USART
• Peripherals: LED, POR, Voltage Detect, WDT
• Number Of I /o: 13
• Program Memory Size: 4KB (4K x 8)
• Program Memory Type: FLASH
• Ram Size: 384 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: R0K5211B4S001BE - KIT STARTER FOR R8C/18191A1BR0K5211B4S000BE - KIT DEV EVALUATION R8C/1BR0E521174CPE10 - EMULATOR COMPACT R8C/18/19/1
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Eeprom Size: -

R8C/1A Group, R8C/1B Group
Rev.1.30
REJ09B0252-0130
Figure 15.11
15.2.1
• Example of receive timing when transfer data is 8 bits long (parity disabled, one stop bit)
UiBRG output
UiC1 register
RE bit
RXDi
Transfer clock
UiC1 register
RI bit
SiRIC register
IR bit
The CNTRSEL bit in the UCON register selects whether P1_7 is used as the CNTR00/INT10 input pin or P1_5
is used as the CNTR01/INT11 input pin.
When the CNTRSEL bit is set to 0, P1_7 is used as the CNTR00/INT10 pin and when the CNTRSEL bit is set
to 1, P1_5 is used as the CNTR01/INT11 pin.
Dec 08, 2006
CNTR0 Pin Select Function
The above timing diagram applies when the register bits are set as follows:
Receive Timing in UART Mode
• PRYE bit in UiMR register = 0 (parity disabled)
• STPS bit in UiMR register = 0 (1 stop bit)
i = 0 or 1
1
0
1
0
1
0
Reception triggered when transfer clock
is generated by falling edge of start bit
Page 166 of 315
Start bit
Determined to be “L” Receive data taken in
D0
Set to 0 when interrupt request is accepted, or set by a program
D1
Transferred from UARTi receive
register to UiRB register
D7
Stop bit
15. Serial Interface