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CineCast HD Version 2.6 Installation and User Manual
MPEG WRITE (10)
MPEG WRITE (10)
(Opcode 0x2A, 10 bytes)
This command is currently being used for the transfer of MPEG data to the Vela
SCSI decoder. Format of the
WRITE
(10) command:
The 1.5MB of DRAM is divided into twenty-four 64-K buffers. The transfer length
must be a multiple of 64-K, which is 80h logical blocks (512 bytes/block). The
Logical Block Address is ignored.
DPO:
Disable Page Out must be zero.
FUA:
Force Unit Access must be zero.
RelAddr:
Relative Address must be zero.
Approximate transfer times of 64-K:
For a partial buffer, e.g., what would be seen at the end of a file, the remaining
data should be padded (with zeroes) to fill up a full 64-K.
MPEG Playback Operation
The MPEG buffer contains twenty-four 64-KB blocks arranged in a circular
FIFO. The write pointer is maintained by the SCSI interface firmware, while the
Asynchronous
Synchronous
Narrow (8-Bit)
10.9 ms
2.0 ms
Wide (16-Bit)
5.5 ms
1.0 ms
Table 2-27.MPEG WRITE (10) Command Format
Содержание 2000-2165
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Страница 49: ...Chapter 1 Getting Started 39 Customer Support Figure 1 23 CineCast HD Rear Panel View...
Страница 51: ...Chapter 1 Getting Started 41 Customer Support Figure 1 25 CineCast HD Cable Assembly P N 6000 0166...
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Страница 145: ...Chapter 3 The Video Playback Controller 135 Figure 3 4 Playlist Open Files Window Figure 3 5 Playlist Save As Window...