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W7500x Reference Manual Version1.1.0
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16.4
Registers (Base address : 0x4100_2000)
External interrupt enable register (Px_y EXTINT)
Address offset : 0x200
Reset value : 0x0000_0000
31
30
29
28
27
26
25
24
23
22
21
20
19
18
17
16
res
res
res
res
Res
res
res
res
res
res
res
res
res
res
res
res
15
14
13
12
11
10
9
8
7
6
5
4
3
2
1
0
res
res
res
res
res
res
res
res
res
res
res
res
res
res
IEN
POL
R/W
R/W
[0] POL – External interrupt polarity selection register
These bits are written by S/W.
0 : interrupt occurs when pad detect HIGH level signal
1 : interrupt occurs when pad detect LOW level signal
[1] PA00IEN – External interrupt enable register
These bits are written by S/W.
0 : external interrupt disable
1 : external interrupt enable
16.5
Register map
The following Table 11 summarizes the EXTINT registers.
Table 11 EXTINT register map and reset values