®
GPIO Controller—Intel
IXP45X and Intel
Register
Bits
Name
27
gpio_npe_3
as per gpio_npe_7
26
gpio_npe_2
as per gpio_npe_7
25
gpio_npe_1
as per gpio_npe_7
24
gpio_npe_0
as per gpio_npe_7
000 – Active High
001 – Active Low
23:2
GPIO7
010 – Rising Edge
1
011 – Falling Edge
1xx – Transitional
20:1
GPIO6
As per GPIO7
8
17:1
GPIO5
As per GPIO7
5
14:1
GPIO4
As per GPIO7
2
11:9
GPIO3
As per GPIO7
8:6
GPIO2
As per GPIO7
5:3
GPIO1
As per GPIO7
2:0
GPIO0
As per GPIO7
15.5.6
GPIO Interrupt Type Register 2
This register describes how to interpret GPIO[15:8] as interrupts, either level or edge,
along with high, low, rising, falling, transitional three bits describe each GPIO pin, as
described in the following table.
Register Name:
Physical Address:
Register Description:
Access: Read/Write
3
1
(Reserved)
August 2006
Reference Number: 306262-004US
®
IXP46X Product Line of Network Processors
Description
0xC8004014
This register is used to control interrupt type for GPIO 15:8
GPIO15
GPIO14
GPIO13
Intel
GPIT1R (Sheet 2 of 2)
GPIT2R
Reset Hex Value:
1
1
6
5
GPIO12
GPIO11
®
®
IXP45X and Intel
IXP46X Product Line of Network Processors
Reset
Access
Value
0
RW
0
RW
0
RW
0
RW
000
RW
Active High
000
RW
Active High
000
RW
Active High
000
RW
Active High
000
RW
Active High
000
RW
Active High
000
RW
Active High
000
RW
Active High
0x00000000
8
7
GPIO10
GPIO9
GPIO8
Developer's Manual
0
783
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