參數(shù)資料
型號(hào)： KS9245
廠商： SAMSUNG SEMICONDUCTOR CO. LTD.
英文描述： Automated CD-ROM Controller(光盤驅(qū)動(dòng)器控制器器)
中文描述： 自動(dòng)CD - ROM控制器（光盤驅(qū)動(dòng)器控制器器）
文件頁數(shù)： 4/102頁
文件大小： 419K
代理商： KS9245
SAMSUNG
Version: TM 2.4
KS9245 ATAPI Automated CD-ROM Controller
Preliminary Technical Manual
_____________________________________________________________
Do Not Copy or Release
1-4
1.0.3
KS9245 Functional Block Diagram
IDE
GADD[19:0]
GDIN[7:0]
MP Bus
DRAM Interface
Subcode Interface
CRC logic
Q De-interleave Logic
Central DRAM Control Logic
Resource Arbitration
Buffer Manager
CD Cache Manager
Packet FIFO
IDE Interface
ATA Task File Register
ATAPI Sequencer
Micro Controller
Interface
Register Decoding
TOP Block Diagram
Transfer Auto Sequencer
Power Manager
Data Block Sync Detector
Subcode Sync. Detector
CD DSP Serial interface
Descrambler
On the fly EDC logic
Header and Subheader logic
Form Detector
ECC Logic
Address Gen
EDC Logic
Subcode
DSP
GDOUT[7:0]
The Buffer Manager controls the data flow between the IDE and DSP interfaces. These interfaces store
and retrieve data to / from the external DRAM buffer memory using interleaved access cycles.
The Host Interface supports ATAPI protocol, and provides the control for the corrected data to be
transferred from the DRAM to the host CPU. Diagnostic data can be transferred from the host CPU to
the DRAM to allow testing of the ECC, EDC, and Host Interface logic.
The Microcontroller Interface logic allows the KS9245 to be controlled by the microcontroller through an
8-bit bus. The chip also provides registers and control functions for transferring data between the
microcontroller and DRAM through Microcontroller Interface.
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