Timed GPIO0 Event Counter Capture Register 31_0 (TGPIOECCV1_31_0) – Offset 1338 - 001 - ID:834576 | Intel® 800 Series Chipset Family Platform Controller Hub (PCH), Volume 2

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Timed GPIO0 Event Counter Capture Register 31_0 (TGPIOECCV1_31_0) – Offset 1338

Bit Range	Default	Access	Field Name and Description
31:0	0h	RO/V	Event Counter Capture Value [31:0] (ECCV) The value in this register must be the Timed GPIO event count associated with the time captured in the Time Capture Value register. A read to the Time Capture Value (TCV1_31_0) register triggers HW to load the Event Counter value into this register. Note: The 'load' signal is the same register read signal that returns the Time Capture Value to the SW. SW must first perform a read to the Time Capture Value (TCV1_31_0) register, followed by a read to this Event Counter Capture Value (ECCV) register such that these two values are associated with each others, despite they are obtained thru 2 separate register read operations one after another. Note: Given that 64 bit values are in two registers, SW needs to account for roll over possibility

Bit Range

Default

Access

Field Name and Description

31:0

RO/V

Event Counter Capture Value [31:0] (ECCV)

The value in this register must be the Timed GPIO event count associated with
the time captured in the Time Capture Value register.
A read to the Time Capture Value (TCV1_31_0) register triggers HW to load the Event Counter value into this register.
Note: The 'load' signal is the same register read signal that returns the Time Capture Value to the SW.
SW must first perform a read to the Time Capture Value (TCV1_31_0) register, followed by a read to this Event Counter Capture Value (ECCV) register such that these two values are associated with each others, despite they are obtained thru 2 separate register read operations one after another.
Note: Given that 64 bit values are in two registers, SW needs to account for roll over possibility

Timed GPIO0 Event Counter Capture Register 63_32 (TGPIOECCV1_63_32)

Timed GPIO Time Capture Register 63_32 (TGPIOTCV1_63_32) Timed GPIO0 Event Counter Capture Register 63_32 (TGPIOECCV1_63_32)