cs5535 National Semiconductor Corporation, cs5535 Datasheet - Page 446

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

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GPIO Subsystem Register Descriptions
5.16.2.13 GPIO Input Auxiliary 1 Select (GPIO[x]_IN_AUX1_SEL)
Each GPIO has a dedicated internal destination for the conditioned input from the component ball; these inputs are acti-
vated when Auxiliary 1 Input is selected. Table 2-8 "GPIO Options" on page 42 shows all the dedicated destinations. These
registers select the Auxiliary 1 Input of the low (GPIO[15:0]) and high (GPIO[31:16]) banks of GPIOs. Auxiliary 1 Input is
selected as the input if the feature bit is high. Auxiliary 1 is not selected as the input if the feature bit is low. (These registers
use atomic programming, see Section 5.16.1 on page 436 for details.)
GPIO Low Bank Input Auxiliary 1 Select
(GPIOL_IN_AUX1_SEL)
GPIO I/O Offset
Type
Reset Value
5.16.2.14 GPIO Event Enable (GPIO[x]_EVNT_EN)
These registers control the Event Enable for INT (Interrupt) and PME (Power Management Event) mapping of the low
(GPIO[15:0]) and high (GPIO[31:16]) banks of GPIOs. The GPIO is enabled for mapping if the feature bit is high. The GPIO
is disabled from mapping if the feature bit is low. Actual mapping is performed by the GPIO X, Y, Z, and W mapping regis-
ters, detailed on page 465 through page 462; the Event Enable registers simply enable/disable the associated GPIO for
mapping. (These registers use atomic programming, see Section 5.16.1 on page 436 for details.)
GPIO Low Bank Events Enable (GPIOL_EVNT_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
34h
R/W
FFFF0000h
38h
R/W
FFFF0000h
GPIOH_IN_AUX1_SEL Register Map
GPIOL_IN_AUX1_SEL Register Map
GPIOH_EVNT_EN Register Map
GPIOL_EVNT_EN Register Map
(Continued)
446
GPIO High Bank Input Auxiliary 1 Select
(GPIOH_IN_AUX1_SEL)
GPIO I/O Offset
Type
Reset Value
GPIO High Bank Events Enable (GPIOH_EVNT_EN)
GPIO I/O Offset
Type
Reset Value
B4h
R/W
B8h
R/W
FFFF0000h
EFFF1000h
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
2
2
2
2
Revision 0.8
1
1
1
1
0
0
0
0