7
dc1974f
DEMO MANUAL DC1974
Lane Alignment Sequence
– Enables or disables the lane
alignment sequence.
n
Enabled (Default) – Lane alignment sequence is
enabled.
n
Disabled - Lane alignment sequence is disabled.
Lane Alignment Monitor
– Enables or disables the lane
monitor sequence.
n
Enabled (Default) – Lane alignment monitor sequence
is enabled.
n
Disabled – Lane alignment monitor sequence is
disabled.
Frame Alignment Monitor
– Enables or disables the Frame
monitor sequence
n
Enabled (Default) – Frame alignment monitor se-
quence is enabled.
n
Disabled – Frame alignment monitor sequence is
disabled.
Reset Dividers (Subclass 1 or 2 Only)
– Enables or dis-
ables SYSREF reset of dividers.
n
Enabled (Default) – Subclass 1 – Enables the SYSREF
reset of dividers. Subclass 2 – Enables SYNC~ reset
of dividers.
n
Disabled – Subclass 1 – Disables the SYSREF reset
of dividers. Subclass 2 – Disables SYNC~ reset of
dividers.
Scrambling
– Enables or disables the scrambling of the
output data.
n
Disabled (Default) – Scrambling is disabled.
n
Enabled – Scrambling is enabled.
Alert Mode De-arm Length (Subclass 1 Only)
– Selects
the de-arming length in multiframe periods to trigger the
alert in subclass 1. Valid values are 1 to 8.
Alert Mode (Subclass 1 Only)
– Enables or disables the
alert mode.
n
Disabled (Default) – Alert mode is disabled.
n
Enabled – Alert mode is enabled.
TX Sync
– Enables or disables Transmitter induced syn-
chronization.
n
Disabled (Default) – Transmitter induced synchro-
nization is disabled.
n
Enabled - Transmitter induced synchronization
is enabled.
Test Pattern
– Selects the data presented at the output
of the ADC
Normal ADC Data (Default)
– The data that is sampled
by the input of the ADC
K28.5 Pattern
– A repeating SYNC comma.
K28.7 Pattern
– 1111100000.
D21.5 Pattern
– 1010101010.
PRBS15 Pattern
– A Pseudorandom bit sequence pat-
tern described by 1 + x
14
+ x
15
.
Lane Alignment Sequence
– The lane alignment se-
quence is transmitted according to tables 3a to 3h from
the datasheet.
Test Samples Sequence
– The test samples are repeat-
edly transmitted according to tables 4a to 4b from the
datasheet.
Modified RPAT Pattern
– A modified RPAT pattern as
described in IEEE Std. 802.3-2008 Annex 48A.
CML Output Magnitude
– Magnitude of the CML out-
put signals.
Value selections are:
10mA (250mV) Default
12mA (300mV)
14mA (350mV)
16mA (400mV)
Once the desired settings are selected hit OK and PScope
will automatically update the register of the device on the
DC1974 demo board.
SOFTWARE
