R5F21238DFP#U0 Renesas Electronics America, R5F21238DFP#U0 Datasheet - Page 397
![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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- Download datasheet (6Mb)
R8C/22 Group, R8C/23 Group
Rev.2.00 Aug 20, 2008
REJ09B0251-0200
18.4
Figure 18.6
18.4.1
CAN0 Message Control Register i (i = 0 to 15)
b7 b6 b5 b4
NOTES:
1.
2.
3.
4.
Figure 18.6 shows the C0MCTLi Register.
CAN SFR Registers
Set the C0MCTLi register only w hen the CAN module is in CAN operation mode.
When w rite, set to 0. Each bit is set w hen the CAN module enters the respective state.
In Basic CAN mode, the RemActive bit serves as data format identification flag. When receiving a date frame, the
RemActive bit is set to 0 and w hen receiving a remote frame, the RemActive bit is set to 1.
One slot can not be defined as reception slot and transmission slot at the same time.
C0MCTLi Register (i = 0 to 15)
b3 b2 b1 b0
C0MCTLi Register
C0MCTL0 to
C0MCTL15
RemActive
Bit Symbol
TrmActive
New Data
SentData
InvalData
MsgLost
RspLock
RecReq
Remote
TrmReq
Symbol
Page 375 of 501
Successful reception flag
Successful transmission
flag
Under reception flag
Under transmission flag
Overw rite flag
Remote frame
transmission/reception
status flag
Auto response lock mode
select bit
Remote frame
corresponding slot select bit
Reception slot request bit
Transmission slot request
bit
(4)
1300h to 130Fh
Address
Bit Name
(3)
(1)
(4)
When set to reception slot
0 : The content of the slot is read or still under
1 : The CAN module has stored new data in the
When set to transmission slot
0 : Transmission is not started or completed yet
1 : Transmission is successfully completed
When set to reception slot
0 : The message is valid
1 : The message is invalid
When set to transmission slot
0 : Waiting for bus idle or completion of arbitration
1 : Transmitting
When set to reception slot
0 : No message is overw ritten
1 : New message is overw ritten
0 : Data frame transmission/reception status
1 : Remote frame transmission/reception status
When set to reception remote frame slot
0 : After a remote frame is received, it w ill be
1 : After a remote frame is received, no
0 : Slot not corresponding to remote frame
1 : Slot corresponding to remote frame
0 : Not reception slot
1 : Reception slot
0 : Not transmission slot
1 : Transmission slot
processing by the CPU
slot
(The message is being updated)
answ ered automatically
transmission w ill be started as long as this bit is
set to 1 (Not responding)
After Reset
Function
00h
18. CAN Module
RO
RO
RO
RW
RW
RW
RW
RW
RO
RO
RO
(2)
(2)
(2)
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