Keysight Technologies N5990A, User Manual

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Keysight N5990A MIPI M-PHY Receiver Test User Guide 167
HS Tests 5
Procedure
The data generator sends Burst-mode CJTPAT signaling with nominal
amplitude settings while the DUT is configured for Terminated-mode.
Then the T
TERM-ON-HS-RX
(HS-RX differential termination enable time) is
measured using a real-time oscilloscope. Among all measured
T
TERM-ON-HS-RX
values, the maximum and minimum T
TERM-ON-HS-RX
values are considered as the final results.
The test will pass if the maximum T
TERM-ON-HS-RX
value is within the
PREPARE time defined by the DUT´s HS_PREPARE_Length_Capability
attribute (see Table 23 ).
This test is performed for all selected HS lanes and gears (see Figure 100 ).
Table 23 HS-Prepare Length Values
Connection Diagram
Figure 101 to Figure 104 show the connection diagrams for the different
system configurations.
Parameter Name Parameter Value Parameter Unit
HS_PREPARE_Length_Capability 0 to 15 N/a
T
HS-PREPARE
HS_PREPARE_Length_Capability* 2 (GEAR-1) SI, 1 SI=10UI
NOTE
The connection diagrams shown are for Gear1. They are the same for
Gear2 and Gear3 but vary in the TTC value (G1: 250ps; G2: 125ps; G3
and G4: 60ps).