R5F21238DFP#U0 Renesas Electronics America, R5F21238DFP#U0 Datasheet - Page 399

• 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

R8C/22 Group, R8C/23 Group
Rev.2.00 Aug 20, 2008
REJ09B0251-0200
Figure 18.8
18.4.3
CAN0 Status Register
(b15)
b7 b6 b5 b4
NOTE:
b7 b6 b5 b4 b3 b2 b1 b0
1.
Figure 18.8 shows the C0STR Register.
Bits TrmSucc and RecSucc change w hen the slot enabled the interrupt in the COICR register completed transmitting
or receiving.
C0STR Register
b3 b2 b1 b0
C0STR Register
(b8)
_BasicCAN
_LoopBack
_MsgOrder
Bit Symbol
Bit Symbol
_BusError
TrmSucc
RecSucc
TrmState
RecState
_BusOff
_ErrPas
Symbol
_Reset
Symbol
C0STR
C0STR
Mbox
State
State
State
State
State
State
State
(b7)
Page 377 of 501
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Reset state flag
Loop back state flag
Message order state flag
Basic CAN mode state flag
Bus error state flag
Error passive state flag
Error bus off state flag
Nothing is assigned. If necessary, set to 0.
When read, the content is indeterminate.
Active slot bits
Successful transmission flag
Successful reception flag
Transmission flag (Transmitter)
Reception flag (Receiver)
Address
Bit Name
Address
Bit Name
(1)
1312h
1313h
(1)
(1)
b3 b2 b1 b0
0 0 0 0 : Slot 0
0 0 0 1 : Slot 1
0 0 1 0 : Slot 2
1 1 1 0 : Slot 14
1 1 1 1 : Slot 15
0 : No [successful] transmission
1 : Transmission successful
0 : No [successful] reception
1 : Reception successful
0 : Idle or receiving
1 : During transmission
0 : Idle or transmitting
1 : During reception
0 : Operation mode
1 : Reset mode
0 : No loop back mode
1 : Loop back mode
0 : Word access
1 : Byte access
0 : No Basic CAN mode
1 : Basic CAN mode
0 : No error occurred
1 : CAN bus error occurred
0 : No error passive state
1 : Error passive state
0 : No bus off state
1 : Bus off state
• • • •
After Reset
After Reset
X0000001b
Function
Function
00h
18. CAN Module
RW
RW
RO
RO
RO
RO
RO
RO
RO
RO
RO
RO
RO
RO
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