![](http://datasheet.mmic.net.cn/330000/PCI4515_datasheet_16443874/PCI4515_88.png)
422
4.32 General-Purpose Event Enable Register
The general-purpose event enable register contains bits that are set to enable GPE signals. See Table 411 for a
complete description of the register contents.
Bit
7
6
5
4
3
2
1
0
Name
General-purpose event enable
Type
RW
RW
R
RW
RW
RW
RW
RW
Default
0
0
0
0
0
0
0
0
Register:
Offset:
Type:
Default:
General-purpose event enable
89h
Read-only, Read/Write
00h
Table 411. General-Purpose Event Enable Register Description
BIT
SIGNAL
TYPE
FUNCTION
7
PWR_EN
RW
Power change GPE enable. When this bit is set, GPE is signaled on PWR_STS events.
6
VPP12_EN
RW
12-V VPP GPE enable. When this bit is set, GPE is signaled on VPP12_STS events.
Reserved. This bit returns 0 when read. A write has no effect.
5
RSVD
R
4
GP4_EN
RW
GPI4 GPE enable. When this bit is set, GPE is signaled on GP4_STS events.
3
GP3_EN
RW
GPI3 GPE enable. When this bit is set, GPE is signaled on GP3_STS events.
2
GP2_EN
RW
GPI2 GPE enable. When this bit is set, GPE is signaled on GP2_STS events.
1
GP1_EN
RW
GPI1 GPE enable. When this bit is set, GPE is signaled on GP1_STS events.
0
GP0_EN
RW
GPI0 GPE enable. When this bit is set, GPE is signaled on GP0_STS events.
This bit is cleared only by the assertion of GRST.
4.33 General-Purpose Input Register
The general-purpose input register contains the logical value of the data input to the GPI terminals. See Table 412
for a complete description of the register contents.
Bit
7
6
5
4
3
2
1
0
Name
General-purpose input
Type
R
R
R
RU
RU
RU
RU
RU
Default
0
0
0
X
X
X
X
X
Register:
Offset:
Type:
Default:
General-purpose input
8Ah
Read/Update, Read-only
XXh
Table 412. General-Purpose Input Register Description
BIT
SIGNAL
TYPE
FUNCTION
75
RSVD
R
Reserved. These bits return 0s when read. Writes have no effect.
4
GPI4_DATA
RU
GPI4 data input. This bit represents the logical value of the data input from GPI4.
3
GPI3_DATA
RU
GPI3 data input. This bit represents the logical value of the data input from GPI3.
2
GPI2_DATA
RU
GPI2 data input. This bit represents the logical value of the data input from GPI2.
1
GPI1_DATA
RU
GPI1 data input. This bit represents the logical value of the data input from GPI1.
0
GPI0_DATA
RU
GPI0 data input. This bit represents the logical value of the data input from GPI0.