R5F21237KFP#U0 Renesas Electronics America, R5F21237KFP#U0 Datasheet - Page 407
R5F21237KFP#U0
Manufacturer Part Number
R5F21237KFP#U0
Description
IC R8C/23 MCU FLASH 48LQFP
Manufacturer
Renesas Electronics America
Series
R8C/2x/23r
Datasheet
1.R5F21237DFPU0.pdf
(551 pages)
Specifications of R5F21237KFP#U0
Core Processor
R8C
Core Size
16/32-Bit
Speed
16MHz
Connectivity
CAN, I²C, LIN, SIO, SSU, UART/USART
Peripherals
POR, Voltage Detect, WDT
Number Of I /o
41
Program Memory Size
48KB (48K x 8)
Program Memory Type
FLASH
Ram Size
2.5K x 8
Voltage - Supply (vcc/vdd)
2.7 V ~ 5.5 V
Data Converters
A/D 12x10b
Oscillator Type
Internal
Operating Temperature
-40°C ~ 125°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
Company
Part Number
Manufacturer
Quantity
Price
Part Number:
R5F21237KFP#U0R5F21237KFP#U1
Manufacturer:
Renesas Electronics America
Quantity:
10 000
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R8C/22 Group, R8C/23 Group
Rev.2.00 Aug 20, 2008
REJ09B0251-0200
18.5.5
When repeating communication error, the CAN module enters a bus-off state according to the fault
confinement rule of CAN specification and cannot perform CAN communication. The CAN module can return
to CAN operation mode from a bus-off state in the following conditions. At this time, the value of all CAN-
associated registers except the C0STR, C0RECR and C0TECR registers are not changed.
(1) When 11 consecutive recessive bits are monitored 128 times
(2) When the RetBus Off bit in the C0CTLR register = 1 (forcible return form bus off)
Bus-Off State
The module enters instantly in an error-active state and performs CAN communication.
The module enters instantly in an error-active state and performs CAN communication again after 11
consecutive recessive bits are detected.
Page 385 of 501
18. CAN Module
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