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參數(shù)資料
| 型號： | L64020XQC |
| 廠商： | LSI CORP |
| 元件分類： | 消費家電 |
| 英文描述： | SPECIALTY CONSUMER CIRCUIT, PQFP160 |
| 封裝： | PLASTIC, QFP-160 |
| 文件頁數(shù)： | 6/32頁 |
| 文件大小： | 370K |
| 代理商： | L64020XQC |
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14
L64020 Single Chip DVD Decoder
CH_DATA [7:0]
Channel Data Bus
Input
The CH_DATA bus is used to transfer 8-bit, parallel
bitstreams into the L64020. The maximum transfer rate
over this interface is 20 Mbits/s in worst case conditions.
The peak data rate may increase above this rate
depending on system SDRAM usage.
AVALIDn
Audio Data Valid
Input
The channel device asserts this signal in response to
AREQn when the data byte it placed on the CH_DATA
bus is valid. The L64020 transfers the byte in when
AVALIDn is deasserted. This signal can be used with the
DCK input for synchronous transfers.
VVALIDn
Video Data Valid
Input
The channel device asserts this signal in response to
VREQn when the data byte it placed on the CH_DATA
bus is valid. The L64020 transfers the byte in when
VREQn is deasserted. This signal can be used with the
DCK input for synchronous transfers. This signal is used
only in the A/V PES stream mode when the channel input
is a program from a transport stream demultiplexer. Use
the AVALIDn signal for all data bytes in program stream
modes.
ERRORn
Bitstream Error
Input
ERRORn is asserted by the channel device to signal
uncorrectable errors in the bitstream and is used by the
L64020 to invoke error handling routines. It is latched by
the L64020 on the rising edge of AVALIDn or VVALIDn.
TOSn
Top of Sector
Input
The host asserts TOSn when the Top Of Sector is
detected by the DVD channel device. DVD packs are
stored in separate sectors on disks. The L64020 uses
TOSn for error detection purposes. This signal is latched
by the L64020 on the rising edge of AVALIDn (VVALIDn
is not used for DVD streams).
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