FEASA LED ANALYSER
ICT VERSION
Synchronous Serial Mode
Synchronous Serial Pin Descriptions
Serial Out Pin 1
This is the Synchronous Serial Data output pin. The Synchronous Serial is a 5-pin data bus
designed for high-speed data transfer between the LED Analyser and the controlling computer.
All data transfers are synchronized to the Serial Clock Pin 3.
Serial In Pin 2
T
his is the Synchronous Serial Data input pin. The data on this pin is synchronized to the
Serial Clock.
Serial Clock Pin 3
This is the Synchronous Serial Clock input pin. All data transfers on pins 1 and 2 must be
synchronized to this clock. Data is valid on the
falling
edge of this clock.
Addr0/LA_Select Pins 9
Addr0 is used in the Synchronous Serial mode to select the Analyser (LA_Select).This signal is
Active High.
RyBy_bar Pin 18
This is the Ready/Busy output pin. It is used to indicate the status of the LED Analyser during
operation. A high on this pin indicates the Analyser is busy and a low indicates the Analyser is
ready for the next operation.
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