CX82100 Home Network Processor Data Sheet
9.3.20
GPIO Interrupt Sensitivity Mode Register 1 for GPIO[15:14; 8:5] (GPIO_ISM1:
0x003500A0)
GPIO_ISM1 is the interrupt sensitive mode register for GPIO[15:14; 8:5].
Bit(s)
31:16;
31≥Y≥16,
Y = Bit #
Type
RO
Default
Name
Description
See specific GPIO_ISMMSK{X},
GPIO[X] Interrupt Sensitivity Mode Mask, 15≥X≥0.
bit
15≥X≥0,
X = Y-16.
Reading:
Return 0.
Writing:
0= Mask off the function associated with GPIO_ISMC{X}.
1 = Enable the function associated with GPIO_ISMC{X}.
GPIO[X] Interrupt Sensitivity Mode Control, 15≥X≥0.
Reading:
15:0;
15≥Y≥0,
Y = Bit #
RW
See specific GPIO_ISMC{X},
bit
15≥X≥0,
X = Y.
Return the last value written to bit #Y.
Writing:
1 = Interrupt input on GPIO[X] will be edge sensitive, if
GPIO_ISMMSK{X} = 1; don't care, otherwise.
0 = Interrupt input on GPIO[X] will be level sensitive, if
GPIO_ISMMSK{X} = 1; don't care, otherwise.
Bit(s)
31
30
29:25
24
23
22
21
20:16
15
14
13:9
8
7
6
5
Type
RO
RO
Default
1’b0
1’b0
Name
GPIO_ISMMSK15
GPIO_ISMMSK14
Description
GPIO15 Interrupt Sensitivity Mode Mask.
GPIO14 Interrupt Sensitivity Mode Mask.
Reserved.
GPIO8 Interrupt Sensitivity Mode Mask.
GPIO7 Interrupt Sensitivity Mode Mask.
GPIO6 Interrupt Sensitivity Mode Mask.
GPIO5 Interrupt Sensitivity Mode Mask.
Reserved.
GPIO15 Interrupt Sensitivity Mode Control.
GPIO14 Interrupt Sensitivity Mode Control.
Reserved.
GPIO8 Interrupt Sensitivity Mode Control.
GPIO7 Interrupt Sensitivity Mode Control.
GPIO6 Interrupt Sensitivity Mode Control.
GPIO5 Interrupt Sensitivity Mode Control.
Reserved.
RO
RO
RO
RO
1’b0
1’b0
1’b0
1’b0
GPIO_ISMMSK8
GPIO_ISMMSK7
GPIO_ISMMSK6
GPIO_ISMMSK5
RW
RW
1’b0
1’b0
GPIO_ISMC15
GPIO_ISMC14
RW
RW
RW
RW
1’b0
1’b0
1’b0
1’b0
GPIO_ISMC8
GPIO_ISMC7
GPIO_ISMC6
GPIO_ISMC5
4:0
101306C
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