DCAN Registers
23.4.31 INTMUX56 Register (offset = E0h) [reset = 0h]
INTMUX56 is shown in
and described in
.
The IntMux flag determine for each message object, which of the two interrupt lines (DCAN0INT or
DCAN1INT) will be asserted when the IntPnd of this message object is set. Both interrupt lines can be
globally enabled or disabled by setting or clearing IE0 and IE1 bits in CAN control register. The IntPnd bit
of a specific message object can be set or reset by the CPU via the IF1/IF2 interface register sets, or by
message handler after reception or successful transmission of a frame. This will also affect the Int0ID resp
Int1ID flags in the interrupt register.
Figure 23-49. INTMUX56 Register
31
30
29
28
27
26
25
24
IntMux[96:81]
R-0h
23
22
21
20
19
18
17
16
IntMux[96:81]
R-0h
15
14
13
12
11
10
9
8
IntMux[80:65]
R-0h
7
6
5
4
3
2
1
0
IntMux[80:65]
R-0h
LEGEND: R/W = Read/Write; R = Read only; W1toCl = Write 1 to clear bit; -n = value after reset
Table 23-44. INTMUX56 Register Field Descriptions
Bit
Field
Type
Reset
Description
31-16
IntMux[96:81]
R
0h
Multiplexes IntPnd value to either DCAN0INT or DCAN1INT interrupt
lines (for all message objects)
0x0 = DCAN0INT line is active if corresponding IntPnd flag is one.
0x1 = DCAN1INT line is active if corresponding IntPnd flag is one.
15-0
IntMux[80:65]
R
0h
Multiplexes IntPnd value to either DCAN0INT or DCAN1INT interrupt
lines (for all message objects)
0x0 = DCAN0INT line is active if corresponding IntPnd flag is one.
0x1 = DCAN1INT line is active if corresponding IntPnd flag is one.
3957
SPRUH73H – October 2011 – Revised April 2013
Controller Area Network (CAN)
Copyright © 2011–2013, Texas Instruments Incorporated