R5F21236KFP#U0 Renesas Electronics America, R5F21236KFP#U0 Datasheet - Page 410

• 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
18.7
Figure 18.20
Figure 18.21
These functions serve the users to select and receive a facultative message. The C0GMR, C0LMAR, and
C0LMBR registers can perform masking to the standard or extended ID. The C0GMR register corresponds to slots
0 to 13, the C0LMAR register corresponds to slot 14, and the C0LMBR register corresponds to slot 15. When
acceptance filtering, the masking function is valid to a received 11 or 29 bit ID by the value set to the slot in the
C0IDR register. This function is used for receiving a certain range of IDs.
Figure 18.20 shows Correspondence of Mask Registers to Slots and Figure 18.21 shows the Acceptance Function.
When using the acceptance function, note the following points.
(1) If two or more slots are set the same ID and received a same message, the smallest slot number is valid.
(2) If slots 14 and 15 are set to receive all IDs in Basic mode, slots 14 and 15 can receive IDs which are not
Acceptance Filtering Function and Masking Function
ID of the received
received by slots 0 to 13.
message
Acceptance Function
Correspondence of Mask Registers to Slots
Page 388 of 501
ID stored in
the slot
C0LMAR register
C0LMBR register
C0GMR register
The value of the
mask register
Slot #10
Slot #11
Slot #12
Slot #13
Slot #14
Slot #15
Slot #0
Slot #1
Slot #2
Slot #3
Slot #4
Slot #5
Slot #6
Slot #7
Slot #8
Slot #9
Mask Bit Values
0 : ID (to which the received message
1 : ID (to which the received message
Acceptance judge signal
0 : The CAN module ignores the current
1 : The CAN module stores the current
corresponds) match is handled as
“Do not care”.
corresponds) match is checked.
incoming message.
(Not stored in any slot)
incoming message in a slot of which ID
matches.
Acceptance
Signal
18. CAN Module