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STR720 bảng dữ liệu(PDF) 215 Page - STMicroelectronics

tên linh kiện STR720
Giải thích chi tiết về linh kiện  ARM720T 16/32-BIT MCU WITH 16K RAM, USB, CAN, 3 TIMERS, ADC, 6 COMMUNICATIONS INTERFACES
PDF  401 Pages
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nhà sản xuất  STMICROELECTRONICS [STMicroelectronics]
Trang chủ  http://www.st.com
Logo STMICROELECTRONICS - STMicroelectronics

STR720 bảng dữ liệu(HTML) 215 Page - STMicroelectronics

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STR720 - CONTROLLER AREA NETWORK (CAN)
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Status Interrupts
A Status Interrupt is generated by bits BOff and EWarn (Error Interrupt) or by RxOk, TxOk,
and LEC (Status Change Interrupt) assuming that the corresponding enable bits in the CAN
Control Register are set. A change of bit EPass or a write to RxOk, TxOk, or LEC will never
generate a Status Interrupt.
Reading the Status Register will clear the Status Interrupt value (8000h) in the Interrupt
Register, if it is pending.
Error Counter (CAN_ERR)
Address Offset: 08h
Reset value: 0000h
15
14
13
12
11
10
9
8
7
6
5
4
3
2
1
0
RP
REC[6:0]
TEC[7:0]
rr
r
Bit 15
RP: Receive Error Passive
0: The Receive Error Counter is below the error passive level.
1: The Receive Error Counter has reached the error passive level as
defined in the CAN Specification.
Bits 14:8
REC[6:0]: Receive Error Counter
Actual state of the Receive Error Counter. Values between 0 and 127.
Bits 7:0
TEC[7:0]: Transmit Error Counter
Actual state of the Transmit Error Counter. Values between 0 and 255.
1



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