參數(shù)資料
型號： KS9245
廠商： SAMSUNG SEMICONDUCTOR CO. LTD.
英文描述： Automated CD-ROM Controller(光盤驅(qū)動器控制器器)
中文描述： 自動CD - ROM控制器（光盤驅(qū)動器控制器器）
文件頁數(shù)： 2/102頁
文件大?。?/td> 419K
代理商： KS9245
SAMSUNG
Version: TM 2.4
KS9245 ATAPI Automated CD-ROM Controller
Preliminary Technical Manual
_____________________________________________________________
Do Not Copy or Release
1-2
1.0.1 Features Summary
General
- Fully compatible with ATAPI Specification SFF-8020i.
- ATAPI command and control registers contained in the KS9245 register set.
- Automatic power-down on interfaces when idle.
- Supports up to 50X CD-ROM drive.
- 0.5 micron, low-power CMOS technology.
- 100-pin PQFP package.
- low power consumption 0.6W typical.
- System Clock running at 33.868 / 50.8 MHz.
Buffer Manager
- Advanced CD Cache Manger for low CPU utilization rate and auto data transfer.
- Advanced priority arbitration scheme to maximize buffer bandwidth for all requests.
- Multiple Block Transfer Up to 1M bytes.
- Auto data transfer for Read, Read CD command Up to 128M bytes.
- External 16-bit wide DRAM supports up to 512K-bytes with EDO option.
- Supports both physical or block addressing modes for microcontroller DRAM access.
- Scatter/Gather host transfer for Read CD command.
- Up to 42 MB/sec buffer bandwidth with Fast Page DRAM.
- Up to 80 MB/sec buffer bandwidth with EDO DRAM.
- Up to 64 K bytes direct host transfer for TOC data.
ATAPI Host Interface
- Support Industry Standard UltraDMA Mode 0, 1 and Mode 2.
- True real-time hardware/firmware ATAPI compatibility.
- Hardware implementation of ATAPI packet command receiving.
- Automated ATA shadow command process.
- Automated ATAPI Signature response.
- Automated protocol control on block transfers for ATAPI read commands.
- Automated command completion control for all ATAPI commands.
- Automated DRQ Packet handler to obtain the best CPU utilization.
- Hardware Service/Release process for overlap command.
- Supports PIO modes 3 and 4 bus transfer rate.
- Supports DMA modes 0, 1 and 2 transfer rate.
- Provision for daisy-chaining two ATA/IDE or ATAPI-embedded drives.
- Supports automatic DASP handshake based on master or slave mode.
CD-ROM DSP interface
- Supports Sony-Philips
CD-ROM, CD-DA
, CD-I and CD Enhanced formats.
- Supports various compact DSP controllers such as Philips, Toshiba, Sanyo, Matsushita.
- Supports erasure correction up to 2 errors per Codeword.
- Supports P,Q correction up to 1 error per Codeword.
- Repeated error correction support.
- On-The-Fly
TM
EDC correction up to 50X data rate.
- C2PO error flags, Raw subcode, and CD-DA buffering support.
- Supports automatic sync pattern search and protection for DRAM data.
- Sector header validity check done by hardware during data transfer.
- Supports real-time de-interleaved Q-subcode buffering and CRC error checking.
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