R5F21237DFP#U0 Renesas Electronics America, R5F21237DFP#U0 Datasheet - Page 14
![IC R8C/23 MCU FLASH 48-LQFP](/photos/12/18/121887/r5f21237dfp_u0_sml.jpg)
R5F21237DFP#U0
Manufacturer Part Number
R5F21237DFP#U0
Description
IC R8C/23 MCU FLASH 48-LQFP
Manufacturer
Renesas Electronics America
Series
R8C/2x/23r
Specifications of R5F21237DFP#U0
Core Processor
R8C
Core Size
16/32-Bit
Speed
20MHz
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 ~ 85°C
Package / Case
48-LQFP
For Use With
RCDK8C - KIT DEV EVAL FOR CAN R8C/23R0K521237S000BE - KIT DEV RSK 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
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19.
20.
18.3
18.4
18.5
18.6
18.7
18.8
18.9
18.10
18.11
18.12
18.13
18.14
19.1
19.2
19.3
19.4
19.5
19.6
19.7
20.1
20.2
20.3
18.4.1
18.4.2
18.4.3
18.4.4
18.4.5
18.4.6
18.4.7
18.4.8
18.4.9
18.4.10 C0AFS Register ................................................................................................................................ 382
18.5.1
18.5.2
18.5.3
18.5.4
18.5.5
18.6.1
18.6.2
18.12.1 Reception .......................................................................................................................................... 392
18.12.2 Transmission ..................................................................................................................................... 393
18.14.1 Reading C0STR Register .................................................................................................................. 395
18.14.2 Performing CAN Configuration ....................................................................................................... 397
18.14.3 Suggestions to Reduce Power Consumption .................................................................................... 398
20.3.1
A/D Converter ............................................................................................................................. 399
Flash Memory ............................................................................................................................. 414
Acceptance Mask Registers ................................................................................................................... 374
CAN SFR Registers ............................................................................................................................... 375
Operational Modes ................................................................................................................................ 383
Configuration of the CAN Module System Clock ................................................................................ 386
Acceptance Filtering Function and Masking Function ......................................................................... 388
Acceptance Filter Support Unit (ASU) ................................................................................................. 389
Basic CAN Mode .................................................................................................................................. 390
Return from Bus off Function ............................................................................................................... 390
Listen-Only Mode ................................................................................................................................. 390
Reception and Transmission ................................................................................................................. 391
CAN Interrupts ...................................................................................................................................... 394
Notes on CAN Module .......................................................................................................................... 395
One-Shot Mode ..................................................................................................................................... 403
Repeat Mode .......................................................................................................................................... 406
Sample and Hold ................................................................................................................................... 409
A/D Conversion Cycles ......................................................................................................................... 410
Internal Equivalent Circuit of Analog Input .......................................................................................... 411
Output Impedance of Sensor Under A/D Conversion ........................................................................... 412
Notes on A/D Converter ........................................................................................................................ 413
Overview ............................................................................................................................................... 414
Memory Map ......................................................................................................................................... 416
Functions to Prevent Rewriting of Flash Memory ................................................................................ 419
C0MCTLi Register (i = 0 to 15) ....................................................................................................... 375
C0CTLR Register ............................................................................................................................. 376
C0STR Register ................................................................................................................................ 377
C0SSTR Register .............................................................................................................................. 378
C0ICR Register ................................................................................................................................. 379
C0IDR Register ................................................................................................................................. 379
C0CONR Register ............................................................................................................................ 380
C0RECR Register ............................................................................................................................. 381
C0TECR Register ............................................................................................................................. 381
CAN Reset/Initialization Mode ........................................................................................................ 383
CAN Operation Mode ....................................................................................................................... 384
CAN Sleep Mode .............................................................................................................................. 384
CAN Interface Sleep Mode ............................................................................................................... 384
Bus-Off State .................................................................................................................................... 385
Bit Timing Configuration ................................................................................................................. 386
Baud Rate .......................................................................................................................................... 387
ID Code Check Function .................................................................................................................. 419
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