STR720 datasheet(235/401 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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235 / 401 page

STR720 - CONTROLLER AREA NETWORK (CAN)

235/401

Interrupt Pending Registers 1 & 2 (CAN_IPnR)

Address Offset: 140h (CAN_IP1R), 144h (CAN_IP2R)

Reset Value: 0000 0000h

These registers contain the IntPnd bits of the 32 Message Objects. By reading the IntPnd

bits, the CPU can check for which Message Object an interrupt is pending. The IntPnd bit of a

specific Message Object can be set/reset by the application software through the IFn

Message Interface Registers or by the Message Handler after reception or after a successful

transmission of a frame. This will also affect the value of IntId in the Interrupt Register.

IntPnd[32:17]

8765

4321

IntPnd[16:1]

Bits 31:16

IntPnd32-17 Interrupt Pending Bits (of all Message Objects)

0: This message object is not the source of an interrupt.

1: This message object is the source of an interrupt.

Bits 15:0

IntPnd16-1 Interrupt Pending Bits (of all Message Objects)

0: This message object is not the source of an interrupt.

1: This message object is the source of an interrupt.

STR720 Datasheet(PDF) 235 Page - STMicroelectronics