ST72521R9-Auto STMicroelectronics, ST72521R9-Auto Datasheet - Page 175

• 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

ST72521xx-Auto
17
17.1
Figure 70. CAN block diagram
RX
TX
Controller area network (CAN)
Introduction
This peripheral is designed to support serial data exchanges using a multimaster contention
based priority scheme as described in CAN specification Rev. 2.0 part A. It can also be
connected to a 2.0 B network without problems, since extended frames are checked for
correctness and acknowledged accordingly although such frames cannot be transmitted nor
received. The same applies to overload frames which are recognized but never initiated.
10 bytes
Buffer 1
TX/RX
BTL
10 bytes
Buffer 2
TX/RX
BCDL
CAN 2.0B passive Core
EML
10 bytes
Buffer 3
TX/RX
Doc ID 17660 Rev 1
SHREG
ST7 Internal Bus
ST7 Interface
4 bytes
Filter 0
CRC
ID
4 bytes
Filter 1
ID
Controller area network (CAN)
RECR
BRPR
TECR
PSR
CSR
BTR
ICR
ISR
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