PDI1394L41 Datasheet, PDF (34/81 Pages) NXP Semiconductors – 1394 content protection AV link layer controller

Philips Semiconductors
1394 content protection AV link layer controller
Preliminary specification
PDI1394L41
12.6.2.4 Block Transmit
The block transmit format is shown below, this is the generic format for reads and writes. The first quadlet contains packet control information.
The second and third quadlets contain the 16-bit destination node ID and either the 48-bit destination offset (for requests) or the response code
and reserved data (for responses). The fourth quadlet contains the length of the data field and the extended transaction code (all zeros except
for lock transaction). The block data, if any, follows the extended transaction code.
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0 spd
tLabel
rt tCode priority
destinationID
dataLength
destinationOffsetHigh
destinationOffsetLow
extendedTcode
Block data
padding (if needed)
Figure 19. Block Packet Transmit Format
SV01085
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0 spd
tLabel
rt
tCode
priority
destinationID
rCode
dataLength
extendedTcode
Block data
padding (if needed)
SV01086
Figure 20. Block Read or Lock Response Transmit Format
2000 Apr 15
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