Auxiliary GPIO Status

The GPIO Status icon displays the current GPIO status, and allows the user to select what general purpose inputs and outputs may be used for. There are two auxiliary outputs that can be used to provide a variety of signals including the following:

Output Usage	Description
Ch0Pattern	Pattern synchronization pulse occuring once per cycle for the repeating pattern detected on Ch-0.
Ch1Pattern	Pattern synchronization pulse occuring once per cycle for the repeating pattern detected on Ch-1.
Ch0Error	Stretched pulse occuring upon detection of an errored 128-bit word on Ch-0.
Ch1Error	Stretched pulse occuring upon detection of an errored 128-bit word on Ch-1.
AnyError	Stretched pulse occuring upon detection of an errored 128-bit word on either Ch-0 or Ch-1.
WordClock	128-bit word clock
AuxLoopback	The level provided as input to the corresponding GPIO input signal. Used for diagnostics purposes.
Off	Disabled.

There are also two auxiliary inputs that are dedicated to specific purposes.

Input Usage	Description
Marker input, Dedicated to SMA1	Used with Error Location Analysis to provide an external trigger that can be associated with error locations.
Blank input, Dedicated to SMA2	Used with Error Location Analysis and Error Location Analysis to mask error checking during specific blanked intervals sampled at 128-bit word boundaries.

GPIO Status Icons

	Local Source
	Remote Source
	External Source

GPIO Configuration Settings

Configures two auxiliary outputs to provide a variety of types of signals, and two auxiliary inputs to be used for a variety of purposes.

Aux-1 Output
CH0 Pattern, CH1Pattern, CH0Error, CH1Error, AnyError, WordClock, AuxLoopback, Off	Select Aux-1 output purpose
Aux-2 Output
CH0 Pattern, CH1Pattern, CH0Error, CH1Error, AnyError, WordClock, AuxLoopback, Off	Select Aux-2 output purpose
Aux-1 Input
Marker	Indicates Aux-1 input is dedicated for use as Marker input. Used with Error Location Analysis to provide an external trigger that can be associated with error locations. Not used at this time.
Aux-2 Input
Blanking	Indicates Aux-2 input is dedicated for use as Blanking input. Used with Error Location Analysis and Error Location Analysis to mask error checking during specific blanked intervals sampled at 128-bit word boundaries.