參數(shù)資料
型號: KS9245
廠商: SAMSUNG SEMICONDUCTOR CO. LTD.
英文描述: Automated CD-ROM Controller(光盤驅動器控制器器)
中文描述: 自動CD - ROM控制器(光盤驅動器控制器器)
文件頁數(shù): 42/102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
5-1
Chapter 5
Buffer/CD Cache Manager Registers
Register 14h :
Valid Cache Block Count Register (Read)
Valid Cache Block Count Register (Write)
VCBC
BIT 5
BIT 4
BIT 3
Valid Cache Block Count Register B7:B0
Acronym:
BIT 7
BIT 6
BIT 2
BIT 1
BIT 0
The
Valid Cache Block Count Register
indicate the number of valid blocks in the buffer DRAM.
These blocks have passed either ECC correction or EDC check and are ready to be transferred to
the host.
Register 15h :
BIT 7
Reserved
BIT 5
BIT 6
BIT 4
BIT 3
BIT 2
BIT 1
BIT 0
Reserved
This register is reserved for future enhancements.
Register 16h :
Total Host Transfer Block Length Register (Read)
Total Host Transfer Block Length Register (Write)
TTBL
BIT 5
BIT 4
BIT 3
Total Host Transfer Block Length Register B7:B0
Acronym:
BIT 7
BIT 6
BIT 2
BIT 1
BIT 0
The
Total Host Transfer Length Register
indicate the remaining block length to be transferred
between the host and the drive before finishing an ATAPI Read (12h) or Read CD (BEh)
Command.
Register 17h :
BIT 7
Reserved
BIT 5
BIT 6
BIT 4
BIT 3
BIT 2
BIT 1
BIT 0
Reserved
This register is reserved for future enhancements.
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