R5F21236KFP#U0 Renesas Electronics America, R5F21236KFP#U0 Datasheet - Page 406

• Manufacturer Part Number: R5F21236KFP#U0
• Description: IC R8C/23 MCU FLASH 48LQFP
• Manufacturer: Renesas Electronics America
• Series: M16C™ M16C/R8C/Tiny/23r

Specifications of R5F21236KFP#U0

• Core Processor: R8C
• Core Size: 16-Bit
• Speed: 16MHz
• 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 ~ 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: -

R8C/22 Group, R8C/23 Group
Rev.2.00 Aug 20, 2008
REJ09B0251-0200
Figure 18.17
18.5.2
18.5.3
18.5.4
The CAN module can enter CAN operation mode when the Reset bit in the C0CTLR register is set to 0. When
set the Reset bit to 0, check that the State_Reset bit in the C0STR register is set to 0. The CAN module
performs the following functions after 11 consecutive bits are detected in CAN operation mode.
The module is placed in one of three sub modes in CAN operation mode.
Figure 18.17 shows Sub Modes in CAN Operation Mode.
The CAN module can enter CAN sleep mode when the Sleep bit in the C0CTLR register is set to 1. Enter CAN
sleep mode via CAN reset/initialization mode.
The power consumption can be reduced because the clock is not provided to the CAN module in CAN sleep
mode.
The CAN module can enter CAN interface sleep mode when the CCLKR3 bit in the CCLKR register is set to
1. Enter CAN interface sleep mode via CAN sleep mode.
The power consumption can be reduced because the clock is not provided to CPU interface in the CAN module
when entering CAN interface sleep mode.
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•
•
•
•
The module can transmit and receive a message.
The module controls the error status by counting transmission and reception errors. CAN communication
depends on the error status.
Idle mode: Every nodes do nothing.
Receive mode: The node can receive a message transmitted by another node.
Transmit mode: The node can transmit a message. The node can receive own transmitting message
simultaneously when the LoopBack bit in the C0CTLR register is set to 1 (Loop back mode).
CAN Operation Mode
CAN Sleep Mode
CAN Interface Sleep Mode
Sub Modes in CAN Operation Mode
Transmit mode
TrmState = 1
RecState = 0
Transmission
Page 384 of 501
starts
TrmState, RecState: Bits in C0STR register
Transmission
Lost in arbitration
completed
TrmState = 0
RecState = 0
Idle mode
completed
Reception
Receive mode
detected
TrmState = 0
RecState = 1
A SOF
18. CAN Module