ST72521R9-Auto STMicroelectronics, ST72521R9-Auto Datasheet - Page 190

• Manufacturer Part Number: ST72521R9-Auto
• Description: 8-bit MCU for automotive
• Manufacturer: STMicroelectronics

Specifications of ST72521R9-Auto

• Hdflash Endurance: 100 cycles, data retention 20 years
• Clock Sources: crystal/ceramic resonator oscillators, internal RC oscillator and bypass for external clock
• 4 Power Saving Modes: Halt, Active Halt, Wait and Slow

Controller area network (CAN)
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Identifier low registers (IDLRx)
Table 102. IDLRx register description
Data registers (DATA0-7x)
Table 103. DATA0-7x register description
IDLRx
7:5
3:0 DLC[3:0]
DATA0-7x
7:0 DATA[7:0]
Bit
Bit
4
7
7
ID[2:0]
Name
Name
RTR
ID[2:0]
R/W
Message Identifier (LSB)
Remote Transmission Request
Data Length Code
Message Data
6
6
These are the least significant 3 bits of the 11-bit message identifier.
This bit is set to indicate a remote frame and reset to indicate a data frame.
It gives the number of bytes in the data field of the message. The valid range is 0
to 8.
DATA[7:0] is a message data byte. Up to eight such bytes may be part of a
message. Writing to byte DATA7 initiates a transmit request and should always be
done even when DATA7 is not part of the message.
5
5
Doc ID 17660 Rev 1
RTR
R/W
4
4
DATA[7:0]
R/W
Function
Function
3
3
2
2
DLC[3:0]
R/W
Reset value: Undefined
Reset value: Undefined
1
1
ST72521xx-Auto
0
0