Overload Condition− int3n group (diagnostic interrupts)

Bits

Field Name

Description

3

OVR_LOAD

Overload Conditionint3n group (diagnostic interrupts)

 

 

1

= enable flag set.

 

 

0

= enable flag not set.

2

ARB_LOSS

Arbitration Lossint3n group (diagnostic interrupts)

 

 

1

= enable flag set.

 

 

0

= enable flag not set.

1

///

Reserved

0

INT_ENB

General Interrupt Enable

 

 

1

= enable flag set.

 

 

0

= enable flag not set.

CAN Operating Mode

The CAN modules can be used in different operating modes. By disabling transmitting data, it is possible to us the CAN in listen only mode enabling features such as automatic bit rate detection. The two modules can be used in an on-chip loop-back mode.

 

BIT

15

 

14

13

12

11

 

10

9

 

8

 

7

 

6

5

4

3

2

1

0

 

 

OFFSET

 

 

 

 

 

 

 

 

 

 

 

4Ah

 

 

 

 

 

 

 

 

 

 

 

FIELD

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

LOOPBACK

 

 

 

 

 

 

 

 

 

 

 

 

 

 

///

 

 

 

 

 

 

 

 

 

PASSIVE

RUN

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

RESET

0

 

 

0

0

0

0

 

0

0

 

0

 

0

 

0

0

0

0

0

0

0

 

 

R/W

R/W

R/W

R/W

R/W

R/W

R/W

R/W

R/W

R/W

 

R/W

R/W

R/W

R/W

R/W

R/W

R/W

 

 

 

 

 

 

 

 

Table 5-40. Interrupt Enable Registers

 

 

 

 

 

 

 

 

 

 

 

 

Table 5-41. Interrupt Enable Register Definitions

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Bits

 

 

Field Name

 

 

Description

 

 

 

 

 

 

 

 

 

 

 

 

 

15:3

 

 

 

 

///

 

 

Reserved

 

 

 

 

 

 

 

 

 

 

 

 

 

2

 

 

LOOP_BACK

 

 

Internal Loopback Mode

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

1

= a-c Internal loopback.

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

0

= a-b; c-d (default)

 

 

 

 

 

 

 

 

 

 

 

1

 

 

PASSIVE

 

 

Active/Passive

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Output is held at ‘ R’ level. The CAN module is only listening.

 

 

 

 

 

 

 

 

 

 

 

1

= CAN is passive.

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

0

= CAN is active.

 

 

 

 

 

 

 

 

 

 

 

0

 

 

RUN

 

 

 

Run Mode

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

1

= places the CAN controller in run mode. Reads ‘ 1’ when

 

 

 

 

 

 

 

 

 

 

 

running .

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

0

= places the CAN controller in stop mode. Reads ‘ 0’ when

 

 

 

 

 

 

 

 

 

 

 

stopped.

 

 

 

 

 

 

 

 

 

 

 

 

74

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Image 82
Lantronix DSTni-EX CAN Operating Mode, 40. Interrupt Enable Registers, 41. Interrupt Enable Register Definitions, Reserved