February 14, 2012 6816985H01-F
7.5-42 Troubleshooting Waveforms: RX Serial Audio Port (SAP)
7.5.41RX Serial Audio Port (SAP)
Note: TX is identical, except the data is probed at test point “TX”.
Trace 1: 8 kHz frame sync (each word is 13 bits after falling edge of FSYNC)
Trace 2: SAP data at R626 (audio data from MAKO CODEC to Patriot DSP)
Note: Transmit is identical, except data acquired at R625
Trace 3: 512kHz bit clock at R616. (Codec_DCLK).
Acquisition Sampling mode real time Configuration 4GSa/s
Memory depth automatic Memory depth 1004pts
Sampling rate automatic Sampling rate 5.00 MSa/s
Averaging off
9-bit BW Filter off Interpolation on
Channel 1 Scale 1.99 V/div Offset -4.21 V Coupling DC Impedance 1M Ohm
Atteunation 10.00 : 1 Atten units ratio Skew 0.0 s
Ext adapter None Ext coupler None
Ext gain 1.00E+00 Ext offset 0.0E+00
Channel 2 Scale 2.00 V/div Offset -210 mV Coupling DC Impedance 1M Ohm
Atteunation 10.00 : 1 Atten units ratio Skew 0.0 s
Ext adapter None Ext coupler None
Ext gain 1.00E+00 Ext offset 0.0E+00
Channel 3 Scale 2.00 V/div Offset -5.55 V Coupling DC Impedance 1M Ohm
Atteunation 10.00 : 1 Atten units ratio Skew 0.0 s
Ext adapter None Ext coupler None
Ext gain 1.00E+00 Ext offset 0.0E+00
Time base Scale 20.0 µs/div Position 92.181816 µs Reference center
Trigger Mode edge Sweep auto
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