STR720 datasheet(215/401 Pages) STMICROELECTRONICS

Part #	STR720

Description	ARM720T 16/32-BIT MCU WITH 16K RAM, USB, CAN, 3 TIMERS, ADC, 6 COMMUNICATIONS INTERFACES

PDF	401 Pages

Scroll/Zoom	100%

Manufacturer	STMICROELECTRONICS [STMicroelectronics]

Direct Link	http://www.st.com

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215 / 401 page

STR720 - CONTROLLER AREA NETWORK (CAN)

215/401

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

Error Counter (CAN_ERR)

Address Offset: 08h

Reset value: 0000h

REC[6:0]

TEC[7:0]

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.

STR720 Datasheet(PDF) 215 Page - STMicroelectronics