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ST72561J4-Auto 데이터시트(PDF) 218 Page - STMicroelectronics

부품명 ST72561J4-Auto
상세설명  Clock, reset and supply management
PDF  324 Pages
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제조업체  STMICROELECTRONICS [STMicroelectronics]
홈페이지  http://www.st.com
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ST72561J4-Auto 데이터시트(HTML) 218 Page - STMicroelectronics

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beCAN controller (beCAN)
ST72561-Auto
218/324
Doc ID 12370 Rev 8
Figure 95.
CAN block diagram
Figure 96.
beCAN operating modes
17.3
Operating modes
The beCAN has three main operating modes: Initialization, Normal and Sleep. After a
hardware reset, beCAN is in Sleep mode to reduce power consumption. The software
requests beCAN to enter Initialization or Sleep mode by setting the INRQ or SLEEP bits in
the CMCR register. Once the mode has been entered, beCAN confirms it by setting the
INAK or SLAK bits in the CMSR register. When neither INAK nor SLAK are set, beCAN is in
1
4 5
CAN 2.0B Active Core
Mailbox 0
Transmission
Filter
1 2
3
Mailbox 1
Mailbox 0
1
2
Receive FIFO
Acceptance Filters
Tx Mailboxes
Master Control
Scheduler
Master Status
Transmit Status
Transmit Prio
Receive FIFO
Error Status
Error Int. Enable
Tx Error Counter
Rx Error Counter
Diagnostic
Bit Timing
Filter Master
Filter Config.
Page Select
Interrupt Enable
0
SLEEP
SYNC
INITIALIZATION
NORMAL
SL
EE
P *
INR
Q
INR
Q
INRQ
RESET
SLAK= 1
INAK = 0
SLAK= X
INAK = X
SLAK= 0
INAK = 1
SLE
EP
SLE
EP
SLAK= 0
INAK = 0
INRQ



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