cs5535 National Semiconductor Corporation, cs5535 Datasheet - Page 443

• Manufacturer Part Number: cs5535
• Description: Geode Cs5535 Companion Multi-function South Bridge
• Manufacturer: National Semiconductor Corporation

Revision 0.8
GPIO Subsystem Register Descriptions
5.16.2.9
These registers control the input enable for the low (GPIO[15:0]) and high (GPIO[31:16]) banks of GPIOs. If the feature bit
is high, the input is enabled. If the feature bit is low, the input is disabled.The reset value forces all the inputs to be disabled.
(These registers use atomic programming, see Section 5.16.1 on page 436 for details.)
GPIO Low Bank Input Enable (GPIOL_IN_EN)
GPIO I/O Offset
Type
Reset Value
5.16.2.10 GPIO Input Invert Enable (GPIO[x]_IN_INVRT_EN)
These registers control the input invert enable for the low (GPIO[15:0]) and high (GPIO[31:16]) banks of GPIOs. The input
is inverted if the feature bit is high. The input is not inverted if the feature bit is low. (These registers use atomic program-
ming, see Section 5.16.1 on page 436 for details.)
GPIO Low Bank Input Invert Enable
(GPIOL_IN_INVRT_EN)
GPIO I/O Offset
Type
Reset Value
31 30 29 28 27 26 25 24 23 22 21 20 19 18 17 16 15 14 13 12 11 10
31 30 29 28 27 26 25 24 23 22 21 20 19 18 17 16 15 14 13 12 11 10
31 30 29 28 27 26 25 24 23 22 21 20 19 18 17 16 15 14 13 12 11 10
31 30 29 28 27 26 25 24 23 22 21 20 19 18 17 16 15 14 13 12 11 10
GPIO Input Enable (GPIO[x]_IN_EN)
20h
R/W
FFFF0000h
24h
R/W
FFFF0000h
GPIOH_IN_INVRT_EN Register Map
GPIOL_IN_INVRT_EN Register Map
GPIOH_IN_EN Register Map
GPIOL_IN_EN Register Map
(Continued)
443
GPIO High Bank Input Enable (GPIOH_IN_EN)
GPIO I/O Offset
Type
Reset Value
GPIO High Bank Input Invert Enable
(GPIOH_IN_INV_EN)
GPIO I/O Offset
Type
Reset Value
A0h
R/W
EFFF1000h
A4h
R/W
FFFF0000h
9
9
9
9
8
8
8
8
7
7
7
7
6
6
6
6
5
5
5
5
4
4
4
4
3
3
3
3
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2
2
2
2
1
1
1
1
0
0
0
0