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| 型號(hào)： | TSB42AA9I |
| 廠商： | Texas Instruments, Inc. |
| 英文描述： | STORAGELYNX 1394 LINK-LAYER CONTROLLER FOR ATA/ATAPI STORAGE PRODUCTS |
| 中文描述： | STORAGELYNX 1394鏈路層的ATA控制器/ ATAPI儲(chǔ)存產(chǎn)品 |
| 文件頁(yè)數(shù)： | 181/183頁(yè) |
| 文件大?。?/td> | 798K |
| 代理商： | TSB42AA9I |
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8.7
Receive Data Path(RXDP)
Section:
4.1, 6.8
ceLynx does not correctly deselect the incoming streams that are not configured to be re-
ceived in ceLynx RX data path/buffer 0.There are some automatic packet abort features in
ceLynx HW that flushes thepacket when ceLynx HW detects an error condition. For example,
settingRXDPCTL.ABTDBCERR bit to 1 enables the function that aborts an entire MPEGcell
or DV frame when ceLynx hardware sees the discontinuity in incoming packetswhich causes
the DBC error. However, this function may incorrectly behave in thecondition that there are
multiple ISO streams broadcasted on the bus and ceLynxbuffer 0 is configured to receive.
In this condition, ceLynx hardware aborts all incomingpackets including the ones that are pro-
grammed to receive into buffer 0 andflags RXDPINT.PKTRCVERR = 1.
Example: There are two ISO streams, DVB and DV being broadcasted in separate ISO chan-
nels, and buffer 0 is configured to receive DV streams. In this condition, nothing willbe re-
ceived into buffer 0 and RXDPINT.PKTRCVERR0 keeps being set to 1 un-
tilRXDPCTL.ABTDBCERR is set to 0. As soon as RXDPCTL.ABTDBCERR set to0, DV
stream RX recovers correctly and no RXDPINT.PKTRCVERR0 flagged. Noproblem when
buffers other than buffer 0 is configured to receive DV streams, orthere is another buffer con-
figured to receive the second ISO stream(DVB streamin this example) so that there is no
stream on the bus that ceLynx is not configuredto receive.
Workaround: Use buffers other than buffer 0 for 1394 RX operations. If the application has
to use buffer 0 for 1394 RX operation, disable all automatic abort functions such
asRXDPCTL.ABTDBCERR for correct RX operation. In this case, automatic abort functions
are not supported by ceLynx hardware.
6.8
If the application wants to keep receiving ISO streams while it is forcing to acknowledge the
incoming asynchronous packets with ACK_TARDY or ACK_BUSY_X, do not set
RXDPCTL.ACKTARDYEN or RXDPCTL.BSYALLPKTS bit. Setting any of these bits will
block ISO stream RX.
Workaround: The application can force the node to acknowledge the incoming Asynchro-
nous packets with ACK_BUSY_X by setting RXDP(N)CFG1 = 0x00000000.
相關(guān)PDF資料 |
PDF描述 |
|---|---|
| TSB42AA9IPZT | STORAGELYNX 1394 LINK-LAYER CONTROLLER FOR ATA/ATAPI STORAGE PRODUCTS |
| TSB42AB4I | IEEE 1394 A CONSUMER ELECTRONICS LINK LAYER CONTROLLER |
| TSB42AB4PGE | IEEE 1394 A CONSUMER ELECTRONICS LINK LAYER CONTROLLER |
| TSB43AA82A1 | 1394 integrated PHY and link layer controller(1394集成PHY和鏈路層控制器) |
| TSB81BA3I | IEEE 1394b THREE-PORT CABLE TRANSCEIVER/ARBITER |
相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| TSB42AA9IPZT | 功能描述:IC 1394 STORAGELYNX 100-TQFP RoHS:否 類別:集成電路 (IC) >> 接口 - 控制器 系列:- 標(biāo)準(zhǔn)包裝:4,900 系列:- 控制器類型:USB 2.0 控制器 接口:串行 電源電壓:3 V ~ 3.6 V 電流 - 電源:135mA 工作溫度:0°C ~ 70°C 安裝類型:表面貼裝 封裝/外殼:36-VFQFN 裸露焊盤 供應(yīng)商設(shè)備封裝:36-QFN（6x6） 包裝:* 其它名稱:Q6396337A |
| TSB42AA9PZT | 制造商:Rochester Electronics LLC 功能描述:- Bulk |
| TSB42AA9PZTR | 制造商:Rochester Electronics LLC 功能描述:- Tape and Reel |
| TSB42AB4 | 制造商:TI 制造商全稱:Texas Instruments 功能描述:IEEE 1394 A CONSUMER ELECTRONICS LINK LAYER CONTROLLER |
| TSB42AB4I | 制造商:TI 制造商全稱:Texas Instruments 功能描述:IEEE 1394 A CONSUMER ELECTRONICS LINK LAYER CONTROLLER |
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