Philips EM7U LCOS, Руководство по обслуживанию

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I 2 C INTERCONNECT PART TWO (Figure 73)
The PIP/DW panel has five devices that are controlled by the OTC via the I 2 C bus.
I 2 C INTERCONNECT PART THREE (Figure 74)
The MSB has two Microprocessors, 7101 and 7407. The PLD (Programmed Logic Device)
mixes the digital OSD from the OTC with the digital video signal from the Pixelworks IC,
7407. The OTC sends and receives commands to and from the PLD via the I
2 C Slow bus.
These commands are then relayed to the main Microprocessor on the MSB, 7407. IC 7407
controls its internal video processing functions as well as external switching. IC 7407 has its
own NVM, 7405, which stores format and video switching commands.
FIGURE 73 - I
2
C INTERCONNECT PART TWO
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