Rev. 1.0, 09/02, page 375 of 568
15.3.13 Interrupt Mask Register (IMR)
IMR is a 16-bit register containing flags that enable or disable requests by individual interrupt
sources. The reset interrupt flag cannot be masked.
Bit
Bit Name
Initial Value
R/W
Description
15
IMR7
1
R/W
Overload Frame Interrupt Mask
When this bit is cleared to 0, an interrupt request
by IRR7 (OVR0) is enabled. When set to 1, it is
masked.
14
IMR6
1
R/W
Bus Off Interrupt Mask
When this bit is cleared to 0, an interrupt request
by IRR6 (ERS0) is enabled. When set to 1, it is
masked.
13
IMR5
1
R/W
Error Passive Interrupt Mask
When this bit is cleared to 0, an interrupt request
by IRR5 (ERS0) is enabled. When set to 1, it is
masked.
12
IMR4
1
R/W
Receive Overload Warning Interrupt Mask
When this bit is cleared to 0, an interrupt request
by IRR4 (OVR0) is enabled. When set to 1, it is
masked.
11
IMR3
1
R/W
Transmit Overload Warning Interrupt Mask
When this bit is cleared to 0, an interrupt request
by IRR3 (OVR0) is enabled. When set to 1, it is
masked.
10
IMR2
1
R/W
Remote Frame Request Interrupt Mask
When this bit is cleared to 0, an interrupt request
by IRR2 (OVR0) is enabled. When set to 1, it is
masked.
9
IMR1
1
R/W
Receive Message Interrupt Mask
When this bit is cleared to 0, an interrupt request
by IRR1 (RM1) is enabled. When set to 1, it is
masked.
8
0 R
Reserved
This bit is always read as 0. The write value should
always be 0.
7 to
5
All
1
R
Reserved
These bits are always read as 1. The write value
should always be 0.
Содержание H8S/2627
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