R5F21236JFP Renesas Electronics America, R5F21236JFP Datasheet - Page 309
![MCU 3/5V 32K+2K 48-LQFP](/photos/28/61/286102/48-lqfp__plqp0048kb-a_sml.jpg)
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
-
Available stocks
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Part Number
Manufacturer
Quantity
Price
Company:
Part Number:
R5F21236JFP
Manufacturer:
Renesas Electronics America
Quantity:
10 000
Company:
Part Number:
R5F21236JFP#U1
Manufacturer:
Renesas Electronics America
Quantity:
135
Company:
Part Number:
R5F21236JFP#U1
Manufacturer:
Renesas Electronics America
Quantity:
10 000
Company:
Part Number:
R5F21236JFP#V0
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Renesas Electronics America
Quantity:
10 000
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R8C/22 Group, R8C/23 Group
Rev.2.00 Aug 20, 2008
REJ09B0251-0200
Table 15.5
i = 0 or 1
NOTES:
Table 15.6
UiTB
UiRB
UiBRG
UiMR
UiC0
UiC1
TXD0(P1_4)
RXD0(P1_5)
CLK0(P1_6)
TXD1(P6_6)
RXD1(P6_7)
Table 15.6 lists the I/O Pin Functions in UART Mode. After the UARTi (i = 0 or 1) operating mode is selected, the
TXDi pin outputs “H” level (if the NCH bit is set to 1 (N-channel open-drain outputs), this pin is in a high-
impedance state) until transfer starts.
1. The bits used for transmit/receive data are as follows: Bits 0 to 6 when transfer data is 7-bit long; bits
2. The following bits are undefined: Bits 7 and 8 when transfer data is 7 bits long; bit 8 when transfer
3. External clock can be selected in UART0 only.
Pin name
Register
0 to 7 when transfer data is 8-bit long; bits 0 to 8 when transfer data is 9-bit long.
data is 8 bits long.
Registers Used and Settings for UART Mode
I/O Pin Functions in UART Mode
0 to 8
0 to 8
OER,FER,PER,SUM
0 to 7
SMD2 to SMD0
CKDIR
STPS
PRY, PRYE
CLK0, CLK1
TXEPT
NCH
CKPOL
UFORM
TE
TI
RE
RI
UiIRS
UiRRM
Output serial data
Input serial data
Programmable I/O port The CKDIR bit in the U0MR register = 0
Input transfer clock
Output serial data
Input serial data
Page 287 of 501
Function
Bit
Set transmit data
Receive data can be read
Error flag
Set a bit rate
Set to 100b when transfer data is 7-bit long
Set to 101b when transfer data is 8-bit long
Set to 110b when transfer data is 9-bit long
Select the internal clock or external clock
Select the stop bit
Select whether parity is included and odd or even
Select the count source for the UiBRG register
Transmit register empty flag
Select TXDi pin output mode
Set to 0
LSB first or MSB first can be selected when transfer data is 8-bit
long. Set to 0 when transfer data is 7- or 9-bit long.
Set to 1 to enable transmit
Transmit buffer empty flag
Set to 1 to enable receive
Receive complete flag
Select the UARTi transmit interrupt source
Set to 0
(Cannot be used as a port when performing receive only)
The PD1_5 bit in the PD1 register = 0
(P1_5 can be used as an input port when performing transmit only)
The CKDIR bit in the U0MR register = 1
The PD1_6 bit in the PD1 register = 0
U1PINSEL bit in PMR register = 1
(Cannot be used as a port when performing receive only)
U1PINSEL bit in PMR register = 1
The PD6_7bit in the PD6 register = 0
(P6_7 can be used as an input port when performing transmit
only)
(1)
Selection Method
(1, 2)
Function
(3)
15. Serial Interface
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