R5F21238DFP#U0 Renesas Electronics America, R5F21238DFP#U0 Datasheet - Page 398
![IC R8C/23 MCU FLASH 48-LQFP](/photos/12/38/123822/r5f21238dfp_u0_sml.jpg)
R5F21238DFP#U0
Manufacturer Part Number
R5F21238DFP#U0
Description
IC R8C/23 MCU FLASH 48-LQFP
Manufacturer
Renesas Electronics America
Series
R8C/2x/23r
Specifications of R5F21238DFP#U0
Core Size
16/32-Bit
Program Memory Size
64KB (64K x 8)
Peripherals
POR, Voltage Detect, WDT
Core Processor
R8C
Speed
20MHz
Connectivity
CAN, I²C, LIN, SIO, SSU, UART/USART
Number Of I /o
41
Program Memory Type
FLASH
Ram Size
3K 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
No. Of I/o's
41
Ram Memory Size
3KB
Cpu Speed
20MHz
No. Of Timers
4
Digital Ic Case Style
LQFP
Embedded Interface Type
CAN, I2C, UART
Rohs Compliant
Yes
Cpu Family
R8C
Device Core Size
16b
Frequency (max)
20MHz
Interface Type
I2C/UART
Total Internal Ram Size
3KB
# I/os (max)
41
Number Of Timers - General Purpose
5
Operating Supply Voltage (typ)
3.3/5V
Operating Supply Voltage (max)
5.5V
Operating Supply Voltage (min)
3V
On-chip Adc
12-chx10-bit
Instruction Set Architecture
CISC
Operating Temp Range
-40C to 85C
Operating Temperature Classification
Industrial
Mounting
Surface Mount
Pin Count
48
Package Type
LQFP
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
For Use With
RCDK8C - KIT DEV EVAL FOR CAN R8C/23R0K521237S000BE - KIT DEV RSK R8C/23R0E521237CPE00 - EMULATOR COMPACT R8C/20/21/22/23
Eeprom Size
-
Lead Free Status / Rohs Status
Compliant
Available stocks
Company
Part Number
Manufacturer
Quantity
Price
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R8C/22 Group, R8C/23 Group
Rev.2.00 Aug 20, 2008
REJ09B0251-0200
Figure 18.7
18.4.2
CAN0 Control Register
(b15)
b7 b6 b5 b4
NOTES:
b7 b6 b5 b4
NOTES:
1.
2.
3.
4. Irrespective of setting the PD6 register, P6_1 and P6_2 function as CAN I/O pins.
1.
2.
3.
4.
Figure 18.7 shows the C0CTLR Register.
When set the Reset bit to 1 (CAN reset/initialization mode), check that the State_Reset bit in the C0STR register is set
to 1 (reset mode).
Set bits LoopBack, MsgOrder, BasicCAN, BusErrEn, Sleep, and PortEn only w hen the CAN module is in CAN
reset/initialization mode.
To use CAN0 w ake up interrupt, set bits Sleep and PorEn to 1.
Set bits TSPreScale and RXOnly only w hen the CAN module is in CAN operation mode.
When set the TSReset bit to 1 (forcible reset of time stamp counter), TSReset bit is automatically set to 0 (normal
operation mode) after the C0TSR register is set to 0000h.
When set the RetBusOff bit to 1 (Fforcible return from bus off), the RetBusOff bit is automatically set to 0 (normal
operation mode) after registers C0RECR and C0TECR are set to 0000h.
When listen-only mode is selected, do not request a transmission.
C0CTLR Register
b3 b2 b1 b0
b3 b2 b1 b0
C0CTLR Register
(b8)
TSPreScale
RetBusOff
Bit Symbol
BasicCAN
Bit Symbol
LoopBack
MsgOrder
BusErrEn
TSReset
C0CTLR
C0CTLR
RXOnly
(b7-b6)
Symbol
Symbol
PortEn
Reset
Sleep
Page 376 of 501
(b7)
(b4)
—
—
—
CAN module reset bit
Loop back mode select bit
Message order select bit
Basic CAN mode select bit
Bus error interrupt enable bit
Sleep mode select bit
CAN port enable bit
Nothing is assigned. If necessary, set to 0.
When read, the content is indeterminate.
Time stamp prescaler
Time stamp counter reset bit
Return from bus off command
bit
Nothing is assigned. If necessary, set to 0.
When read, the content is indeterminate.
Listen-only mode select bit
Nothing is assigned. If necessary, set to 0.
When read, the content is indeterminate.
(3)
Address
Bit Name
Address
Bit Name
1310h
1311h
(2,3)
(1)
(2,3)
(1)
(2)
(2)
(2)
(1)
(2)
(2)
b1 b0
0 0 : 1 Period of 1 bit time
0 1 : 1 Period of 1/2 bit time
1 0 : 1 Period of 1/4 bit time
1 1 : 1 Period of 1/8 bit time
0 : Operation mode
1 : Reset/initialization mode
0 : Loop back mode disabled
1 : Loop back mode enabled
0 : Word access
1 : Byte access
0 : Basic CAN mode disabled
1 : Basic CAN mode enabled
0 : Bus error interrupt disabled
1 : Bus error interrupt enabled
0 : Sleep mode disabled
1 : Sleep mode enabled; clock supply stopped
0 : I/O port function
1 : CTx/CRx function
0 : Nothing is occurred
1 : Forcible reset of time stamp counter
0 : Nothing is occurred
1 : Forcible return from bus off
0 : Listen-only mode disabled
1 : Listen-only mode enabled
After Reset
After Reset
XX0X0000b
X0000001b
Function
Function
(4)
(4)
18. CAN Module
RW
RW
RW
RW
RW
RW
RW
RW
RW
RW
RW
RW
RW
—
—
—
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