R5F211B1SP#U0 Renesas Electronics America, R5F211B1SP#U0 Datasheet - Page 170
R5F211B1SP#U0
Manufacturer Part Number
R5F211B1SP#U0
Description
IC R8C MCU FLASH 4K 20SSOP
Manufacturer
Renesas Electronics America
Series
M16C™ M16C/R8C/Tiny/1Br
Datasheets
1.R5F211A2SPU0.pdf
(51 pages)
2.R5F211A2SPU0.pdf
(300 pages)
3.R5F211A2SPU0.pdf
(341 pages)
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
-
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R8C/1A Group, R8C/1B Group
Rev.1.30
REJ09B0252-0130
15. Serial Interface
The serial interface consists of two channels (UART0 and UART1). Each UARTi (i = 0 or 1) has an exclusive timer to
generate the transfer clock and operates independently.
Figure 15.1 shows a UARTi (i = 0 or 1) Block Diagram. Figure 15.2 shows a UARTi Transmit/Receive Unit.
UART0 has two modes: clock synchronous serial I/O mode and clock asynchronous serial I/O mode (UART mode).
UART1 has only clock asynchronous serial I/O mode (UART mode).
Figures 15.3 to 15.6 show the Registers Associated with UARTi.
Figure 15.1
(UART0)
(UART1)
RXD0
RXD1
CLK0
CLK1 to CLK0 = 00b
CLK1 to CLK0
f32
f32
f1
f8
f1
f8
Dec 08, 2006
reversing
= 01b
= 10b
= 00b
= 01b
= 10b
polarity
circuit
CLK
UARTi (i = 0 or 1) Block Diagram
Internal
Clock synchronous type
(when internal clock is selected)
CKDIR = 0
Internal
External
CKDIR=1
Page 152 of 315
U0BRG register
1/(n0+1)
1/(n1+1)
U1BRG
register
1/16
1/16
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
UART reception
UART transmission
synchronous type
synchronous type
Clock
Clock
Reception control
Transmission
control circuit
Transmission
control circuit
control circuit
Reception
CKDIR = 0
CKDIR = 1
circuit
Receive clock
Transmit clock
Receive
clock
Transmit
clock
Transmit/
Transmit/
receive
receive
unit
unit
15. Serial Interface
TXD0
TXD1
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