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)的視聽鏈接層控制器）
文件頁(yè)數(shù)： 20/81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
17
In Little Endian mode and DATAINV = 0, the bytes in each quadlet are numbered 3. .0 from the left (most significant) to right (least significant)
as shown in Figure 5. To access a register in 8 bit HIF mode, at address N the CPU should use addresses E:
E = N + 3 ;to access the upper 8 bits of the register
E = N + 2 ;to access the upper middle 8 bits of the register
E = N + 1 ;to access the lower middle 8 bits of the register
E = N ;to access the lower 8 bits of the register
To access a register in 16 bit HIF mode, at internal address N, the CPU should used addresses E:
E = N ;to access the lower 16 bits of the register
E = N + 2 ;to access the upper 16 bits of the register
SV01079
29 28 272625 24 23 22 212019 18 1716 15 1413 12 11 10 9 8 7 6 5 4 3 2 1 0
BYTE 3
BYTE 2
BYTE 0
3130
BYTE 1
Figure 5.
Byte order in quadlets as implemented in the host interface, HIF LTLEND = HIGH
12.5.4
Although entire incoming packets are stored in the receiver buffer memory they are not randomly accessible. These buffers act like FIFOs and
only the frontmost (oldest) data quadlet entry is accessible for reading. Therefore only one location (register address) is allocated to each of the
two receiver queues. Reading this location returns the head entry of the queue, and at the same time removes it from the queue, making the
next stored data quadlet accessible.
Accessing the asynchronous packet queues
With the current host interface such a read is in fact a move operation of the data quadlet from the queue to the shadow register. Once the data
is copied into the shadow register it is no longer available in the queue itself so the CPU should always read all 4 bytes, or both words, before
attempting any other read access (be careful with interrupt handlers for the PDI1394L41!).
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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