552
15.2.13
Interrupt Mask Register (IMR)
The interrupt mask register (IMR) is a 16-bit readable/writable register containing flags that
enable or disable requests by individual interrupt sources.
IMR
Bit:
15
14
13
12
11
10
9
8
IMR7
IMR6
IMR5
IMR4
IMR3
IMR2
IMR1
—
Initial value:
1
1
1
1
1
1
1
0
R/W:
R/W
R/W
R/W
R/W
R/W
R/W
R/W
—
Bit:
7
6
5
4
3
2
1
0
—
—
—
IMR12
—
—
IMR9
IMR8
Initial value:
1
1
1
1
1
1
1
1
R/W:
—
—
—
R/W
—
—
R/W
R/W
Bit 15—Overload Frame/Bus Off Recovery Interrupt Mask: Enables or disables overload
frame/bus off recovery interrupt requests.
Bit 15: IMR7Description
0
Overload frame/bus off recovery interrupt request to CPU by IRR7 enabled
1
Overload frame/bus off recovery interrupt request to CPU by IRR7 disabled
(Initial value)
Bit 14—Bus Off Interrupt Mask: Enables or disables bus off interrupt requests caused by the
transmit error counter.
Bit 14: IMR6
Description
0
Bus off interrupt request to CPU by IRR6 enabled
1
Bus off interrupt request to CPU by IRR6 disabled
(Initial value)
Bit 13—Error Passive Interrupt Mask: Enables or disables error passive interrupt requests
caused by the transmit/receive error counter.
Bit 13: IMR5
Description
0
Error passive interrupt request to CPU by IRR5 enabled
1
Error passive interrupt request to CPU by IRR5 disabled
(Initial value)
Содержание H8S/2645
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