PDI1394L40 查看數據表（PDF） - Philips Electronics
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PDI1394L40 Datasheet PDF : 80 Pages
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Philips Semiconductors
1394 enhanced AV link layer controller
Preliminary specification
PDI1394L40
12.6.2.3 Quadlet Transmit
Three quadlet transmit formats are shown below. In these figures: The first quadlet contains packet control information. The second and third
quadlets contain 16-bit destination ID and either the 48-bit quadlet-aligned destination offset (for requests) or the response code (for responses).
The fourth quadlet contains the quadlet data for read response and write quadlet request formats, or the upper 16 bits contain the data length
for the block read request format.
31 30 29 28 27 26 25 24 23 22 21 20 19 18 17 16 15 14 13 12 11 10 9 8 7 6 5 4 3 2 1 0
0 spd
tLabel
rt
tCode priority
destinationID
destinationOffsetHigh
destinationOffsetLow
quadlet data
SV01082
Figure 16. Quadlet Write Request Transmit Format
31 30 29 28 27 26 25 24 23 22 21 20 19 18 17 16 15 14 13 12 11 10 9 8 7 6 5 4 3 2 1 0
0 spd
tLabel
rt
tCode
priority
destinationID
rCode
quadlet data
SV01083
Figure 17. Quadlet Read Response Transmit Format
2000 Dec 15
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