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CS5535 Datasheet(PDF) 445 Page - National Semiconductor (TI)

[Old version datasheet] Texas Instruments acquired National semiconductor.
Part # CS5535
Description  Geode??CS5535 I/O Companion Multi-Function South Bridge
PDF  555 Pages
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Manufacturer  NSC [National Semiconductor (TI)]
Direct Link  http://www.national.com
Logo NSC - National Semiconductor (TI)

CS5535 Datasheet(HTML) 445 Page - National Semiconductor (TI)

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GPIO Subsystem Register Descriptions (Continued)
5.16.2.12 GPIO Input Event Count Enable (GPIO[x]_IN_EVNTCNT_EN)
These registers control the enabling of the input event counter function for the low (GPIO[15:0]) and high (GPIO[31:16])
banks of GPIOs. If the feature bit is high, the event counter function is enabled on the input. If the feature bit is low, the
event counter function is disabled on the input. The reset value forces all the filter functions to be disabled. (These registers
use atomic programming, see Section 5.16.1 on page 436 for details.)
When the event counter is enabled, the filter must also be enabled (GPIO I/O Offset 28h/A8h). If no filtering is desired, then
program the GPIO_FILTER[x]_AMOUNT register to 0.
GPIO Low Bank Input Event Count Enable
(GPIOL_IN_EVNTCNT_EN)
GPIO High Bank Input Event Count Enable
(GPIOH_IN_EVNTCNT_EN)
GPIO I/O Offset
2Ch
Type
R/W
Reset Value
FFFF0000h
GPIO I/O Offset
ACh
Type
R/W
Reset Value
FFFF0000h
GPIOL_IN_EVNTCNT_EN Register Map
31 30 29 28 27 26 25 24 23 22 21 20 19 18 17 16 15 14 13 12 11 10
98
7654321
0
GPIOH_IN_EVNTCNT_EN Register Map
31 30 29 28 27 26 25 24 23 22 21 20 19 18 17 16 15 14 13 12 11 10
98
7654321
0



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