R5F21236JFP Renesas Electronics America, R5F21236JFP Datasheet - Page 297
R5F21236JFP
Manufacturer Part Number
R5F21236JFP
Description
MCU 3/5V 32K+2K 48-LQFP
Manufacturer
Renesas Electronics America
Series
M16C™ M16C/R8C/Tiny/23r
Datasheet
1.R5F21237DFPU0.pdf
(551 pages)
Specifications of R5F21236JFP
Core Processor
R8C
Core Size
16-Bit
Speed
20MHz
Connectivity
CAN, I²C, LIN, SIO, SSU, UART/USART
Peripherals
POR, Voltage Detect, WDT
Number Of I /o
41
Program Memory Size
32KB (32K x 8)
Program Memory Type
FLASH
Ram Size
2K x 8
Voltage - Supply (vcc/vdd)
2.7 V ~ 5.5 V
Data Converters
A/D 12x10b
Oscillator Type
Internal
Operating Temperature
-40°C ~ 85°C
Package / Case
48-LQFP
For Use With
RCDK8C - KIT DEV EVAL FOR CAN R8C/23R0E521237CPE00 - EMULATOR COMPACT R8C/20/21/22/23
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
Eeprom Size
-
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Company:
Part Number:
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Manufacturer:
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Quantity:
10 000
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Part Number:
R5F21236JFP#U1
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Quantity:
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Part Number:
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R8C/22 Group, R8C/23 Group
Rev.2.00 Aug 20, 2008
REJ09B0251-0200
15. Serial Interface
Serial Interface is configured with two channels: UART0 and UART1. Each UART0 and Uart1 has an exclusive timer
to generate a transfer clock and they operate independently.
Figure 15.1 shows the UARTi (i = 0 or 1) Block Diagram. Figure 15.2 shows the UARTi (i = 0 or 1) 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 one mode: clock asynchronous serial interface 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
CLK1 to CLK0
f32
f32
f1
f1
f8
f8
reversing
= 00b
= 01b
= 10b
= 00b
= 01b
= 10b
polarity
circuit
CLK
UARTi (i = 0 or 1) Block Diagram
U1PINSEL
Internal
Clock synchronous type
(when internal clock is selected)
CKDIR = 0
Internal
External
CKDIR = 1
Page 275 of 501
U0BRG register
U1BRG register
1/(n1 + 1)
1/(n0 + 1)
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
Reception control
Transmission
control circuit
Transmission
control circuit
CKDIR = 0
CKDIR = 1
circuit
circuit
Receive
clock
Receive
clock
Transmit
clock
Transmit
clock
Transmit/
Transmit/
receive
receive
unit
unit
15. Serial Interface
TXD0
TXD1
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