Samsung DVD-E234 Manual page 44

Circuit Operating Descriptions
7-5-3 Waveform Description
It measures the timing that data processed in SIC1 at DVD playback.
CH1
CH2
CH3
CH4
• CH1 : STROBE (SIC1-123, CLOCK)
• CH2 : REQ (SIC1-124, DATA REQUEST)
• CH3 : DACK (SIC1-125, DATA ACKNOWLEDGE)
• CH4 : SDATA (SIC1-126~133, SDATA)
7-14
Fig. 7-18
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