cs5535 National Semiconductor Corporation, cs5535 Datasheet - Page 439

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

Revision 0.8
GPIO Subsystem Register Descriptions
5.16.2.3
These registers control the open-drain enable of the output for the low (GPIO[15:0]) and high (GPIO[31:16]) banks of
GPIOs. The open-drain is enabled if the feature bit is high. The open-drain is disabled if the feature bit is low.The reset
value forces all open-drains on the outputs to be disabled. (These registers use atomic programming, see Section 5.16.1 on
page 436 for details.)
GPIO Low Bank Output Open-Drain Enable
(GPIOL_OUT_OD_EN)
GPIO I/O Offset
Type
Reset Value
5.16.2.4
These registers control the output invert enable for the low (GPIO[15:0]) and high (GPIO[31:16]) banks of GPIOs. The out-
put is inverted if the feature bit is high. The output is not inverted if the feature bit is low. (These registers use atomic pro-
gramming, see Section 5.16.1 on page 436 for details.)
GPIO Low Bank Output Invert Enable
(GPIOL_OUT_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 Output Open-Drain Enable (GPIO[x]_OUT_OD_EN)
GPIO Output Invert Enable (GPIO[x]_OUT_INVRT_EN)
08h
R/W
FFFF0000h
0Ch
R/W
FFFF0000h
GPIOH_OUT_INVRT_EN Register Map
GPIOL_OUT_INVRT_EN Register Map
GPIOH_OUT_OD_EN Register Map
GPIOL_OUT_OD_EN Register Map
(Continued)
439
GPIO High Bank Output Open-Drain Enable
(GPIOH_OUT_OD_EN)
GPIO I/O Offset
Type
Reset Value
GPIO High Bank Output Invert Enable
(GPIOH_OUT_INVRT_EN)
GPIO I/O Offset
Type
Reset Value
88h
R/W
FFFF0000h
8Ch
R/W
FFFF0000h
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