PDI1394L21 データシートの表示（PDF） - Philips Electronics

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コンポーネント説明

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PDI1394L21

1394 full duplex AV link layer controller

Philips Electronics 

Philips Semiconductors

1394 full duplex AV link layer controller

Preliminary specification

PDI1394L21

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destinationID

tLabel

rt

tCode

priority

sourceID

rCode

dataLength

extendedTcode

Block data

padding (if needed)

spd

u ackSent

SV00263

Figure 20. Block Read or Lock Response Receive Format

12.5.2.4 Self-ID and PHY packets receive

The self-ID and PHY packet receive formats are shown below. The first quadlet contains a synthesized packet header with a tCode of 0xE

(hex). For self-ID information, the remaining quadlets contain data that is received from the time a bus reset ends to the first subaction gap. This

is the concatenation of all the self-ID packets received. Note that the bit-inverted check quadlet is included in the Read Request FIFO and the

application must check it.

3130 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

11102

00002

self ID packet data

00

ackSent

Figure 21. Self-ID Receive Format

SV00264

The “ackSent” field will either be “ACK_DATA_ERROR” if a non-quadlet-aligned packet is received or there was a data overrun, or

“ACK_COMPLETE” if the entire string of self-ID packets was received.

1999 Aug 06

22

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