參數(shù)資料
型號(hào)： PDI1394L41
廠商： NXP Semiconductors N.V.
英文描述： Content Protection AV Link Layer(內(nèi)容可保護(hù)的AV鏈接層控制器)
中文描述： 影音內(nèi)容保護(hù)鏈路層（內(nèi)容可保護(hù)的視聽(tīng)鏈接層控制器）
文件頁(yè)數(shù)： 29/81頁(yè)
文件大?。?/td> 303K
代理商： PDI1394L41
Philips Semiconductors
Preliminary specification
PDI1394L41
1394 content protection AV link layer controller
2000 Apr 15
26
12.6
The PDI1394L41 provides an interface to asynchronous data packets through the registers in the host interface. The format of the
asynchronous packets is specified in the following sections.
The Asynchronous Packet Interface
12.6.1
Upon reception of a packet, the packet data is stored in the appropriate receive FIFO, either the Request or Response FIFO. The location of the
packet is indicated by either the RREQQQAV or RRSPQAV status bit being set in the Asynchronous Interrupt Acknowledge (ASYINTACK)
register. The packet is transferred out of the FIFO by successive reads of the Asynchronous Receive Request (RREQ) or Asynchronous
Receive Response (RRSP) register. The end of the packet (the last quadlet) is indicated by either the RREQQLASTQ or RRSPQLASTQ bit set
in ASYINTACK. Attempting to read the FIFO when either RREQQQAV bit or RRSPQQAV bit is set to 0 (in the Asynchronous RX/TX interrupt
acknowledge, ASYINTACK, register) will result in a queue read error.
Reading an Asynchronous Packet
12.6.2
The data formats for transmission and reception of data are shown below. The transmit format describes the expected organization for data
presented to the link at the asynchronous transmit, physical response, or isochronous transmit FIFO interfaces.
Link Packet Data Formats
12.6.2.1
These sections describe the formats in which packets need to be delivered to the queues (FIFOs) for transmission. There are four basic formats
as follows:
Asynchronous Transmit Packet Formats
ITEM
FORMAT
USAGE
TRANSACTION CODE
(tCode)
4
1
No packet data
No-packet data
Quadlet read requests
Quadlet/block write responses
2
Quadlet write requests
0
2
Quadlet packet
Quadlet read responses
6
Block read requests
5
Block write requests
1
Block read responses
7
3
Block Packet
Lock requests
9
Lock responses
B
hex
A
hex
E
hex
Asynchronous streams
4
Unformatted transmit
Concatenated self-ID / PHY packets
Each packet format uses several fields (see names and descriptions below). More information about these fields (not the format) can be found
in the 1394 specification. Grey fields are reserved and should be set to zero values.
相關(guān)PDF資料
PDF描述
PDI1394P21 3-port Physical Layer Interface(三端口物理層接口)
PDI1394P22 3-port Physical Layer Interface(三端口物理層接口)
PDI1394P24 2-port 400 Mbps physical layer interface(2端口 400 Mbps物理層接口)
PDI40C1D00
PDI40C1300
相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
PDI1394L41BE 制造商:PHILIPS 制造商全稱:NXP Semiconductors 功能描述:1394 content protection AV link layer controller
PDI1394P11 制造商:PHILIPS 制造商全稱:NXP Semiconductors 功能描述:3-port physical layer interface
PDI1394P11A 制造商:PHILIPS 制造商全稱:NXP Semiconductors 功能描述:3-port physical layer interface
PDI1394P11ABD 制造商:PHILIPS 制造商全稱:NXP Semiconductors 功能描述:3-port physical layer interface
PDI1394P11ABD-S 制造商:未知廠家 制造商全稱:未知廠家 功能描述:Transceiver
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