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| 型號： | 935268252551 |
| 廠商： | NXP SEMICONDUCTORS |
| 元件分類： | 微控制器/微處理器 |
| 英文描述： | 1 CHANNEL(S), 400M bps, SERIAL COMM CONTROLLER, PQFP144 |
| 封裝： | 20 X 20 MM, 1.40 MM HEIGHT, PLASTIC, MS-026, SOT-486-1, LQFP-144 |
| 文件頁數(shù)： | 28/80頁 |
| 文件大?。?/td> | 306K |
| 代理商： | 935268252551 |
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Philips Semiconductors
Preliminary specification
PDI1394L40
1394 enhanced AV link layer controller
2000 Dec 15
31
12.6.2.5
Unformatted Transmit
The unformatted transmit format is shown in Figure 21. The first quadlet contains packet control information. The remaining quadlets contain
data that is transmitted without any formatting on the bus. No CRC is appended on the packet, nor is any data in the first quadlet sent. This is
used to send PHY configuration and Link-on packets. Note that the bit-inverted check quadlet must be included in the FIFO since the AV Link
core will not generate it.
spd
tLabel
1110
priority
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
unformatted packet data
SV01087
31 30
00
Figure 21.
Unformatted Transmit Format
12.6.2.6
Asynchronous Stream Transmit
The PDI1394L40 supports asynchronous stream as specified in IEEE1394a-2000. The asynchronous stream packet format is shown below.
The first quadlet contains packet control information. The second quadlet contains datalength, tag, channel number, and synchronization code.
The third quadlet contains the datalength in quadlets. The datalength can be zero for empty asynchronous stream packets.
SV01050
31 30 29 28 27 26 25 24 23 22 21 20 19 18 17 16 15 14 13 12 11 10 987 654 3210
spd
tLabel
1
1110
priority
dataLength
tag
channel
1010
sy
Block data
padding (if needed)
Figure 22.
Asynchronous Stream Packet Transmit Format
When a packet conforming to this format is written to either asynchronous transmit FIFO, an asynchronous stream packet (identical on the
cable to an isochronous packet) will be transmitted during the asynchronous phase of a bus cycle.
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| 08008GOC | 125 A, 800 V, SCR, TO-209AC |
| 08008GOD | 125 A, 800 V, SCR, TO-208AD |
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