Modes Of Operation - Semtech EB-GS3471-00 User Manual

Table 1-6: Status LEDs Description (Continued)
Ref Colour
Programmable
D5 Green
D6 Green
D7 Red
D10 Green
D11 Green
D13 Green
D15 Green
D16 Green
D18 Green

1.9 Modes of Operation

The GS3471 supports four distinct modes of operation that can be accessed through the
GUI or through the GSPI interface to internal registers. These modes are: SMPTE mode,
Data-Through mode, DVB-ASI mode, and Standby mode.
The GS3471 can automatically detect the format of the incoming signal. If the format of
the incoming signal is not recognized, the GS3471 defaults into SMPTE Bypass mode.
Alternatively, the device may be forced into any of the four modes through the GUI.
In SMPTE mode, the GS3471 performs full SMPTE processing, and features a number of
signal integrity checks and measurement capabilities.
In DVB-ASI mode, 8b/10b decoding is applied to the received data stream.
In SMPTE Bypass mode, all forms of SMPTE and DVB-ASI decoding are disabled, and the
device can be used as a simple serial-to-parallel converter without incurring the latency
penalties associated with SMPTE or DVB-ASI mode.
The device can also operate in a several lower power modes:
• Sleep
• Standby
• Standby with PCLK
• Sleep with SDO
• Standby with SDO Retimed
• Standby with SDO with PCLK
• Standby with SDO Retimed with PCLK
GS3471
Evaluation Board User Guide Rev.3
PDS-061243 March 2018
Device Description
Y/1ANC, when Data Stream 1 ancillary data is
Yes GS3471
detected, LED is active.
Yes GS3471 When DATA ERROR is detected, LED is active.
Reverse polarity. When polarity is reversed on
No —
J13, LED is active.
When power is present on the 5V input J5 and
No —
J13, LED is active.
No — When internal +3.3V is good, LED is active.
No — When internal +2.5V is good, LED is active.
Reset indicator, When LED active
No —
EB-GS3471-00 is not in reset.
No — When internal +1.8V is good, LED is active.
No — When internal +1.2V is good, LED is active.
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