SST55LD017C-40-I-TQW PDF资料下载(29/52 页)FLASH MEMORY DRIVE CONTROLLER, PQFP100

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参数资料

型号：	SST55LD017C-40-I-TQW
厂商：	SILICON STORAGE TECHNOLOGY INC
元件分类：	存储控制器/管理单元
英文描述：	FLASH MEMORY DRIVE CONTROLLER, PQFP100
封装：	MS-026AED, TQFP-100
文件页数：	29/52页
文件大小：	606K
代理商：	SST55LD017C-40-I-TQW

EOL Product Data Sheet

ATA Flash Disk Controller

SST55LD017A / SST55LD017B / SST55LD017C

2006 Silicon Storage Technology, Inc.

S71211-03-EOL

4/06

10.2.1.24 Write-Sector(s) - 30H or 31H

This command writes from 1 to 256 sectors as specified in the Sector Count register. A sector count of

zero requests 256 sectors. The transfer begins at the sector specified in the Sector Number register.

When this command is accepted, the ATA flash disk controller sets BSY, then sets DRQ and clears

BSY, then waits for the host to fill the sector buffer with the data to be written. No interrupt is generated

to start the first host transfer operation. No data should be transferred by the host until BSY has been

cleared by the host.

For multiple sectors, after the first sector of data is in the buffer, BSY will be set and DRQ will be

cleared. After the next buffer is ready for data, BSY is cleared, DRQ is set and an interrupt is generated.

When the final sector of data is transferred, BSY is set and DRQ is cleared. It will remain in this state

until the command is completed at which time BSY is cleared and an interrupt is generated.

If an error occurs during a write of more than one sector, writing terminates at the sector where the

error occurs. The Command Block registers contain the cylinder, head and sector number of the sector

where the error occurred. The host may then read the command block to determine what error has

occurred, and on which sector.

10.2.1.25 Write-Verify - 3CH

This command is similar to the Write-Sector(s) command, except each sector is verified immediately

after being written. This command has the same protocol as the Write-Sector(s) command.

Bit ->

76543210

Command (7)

30H or 31H

C/D/H (6)

LBA

Drive

Head (LBA 27-24)

Cyl High (5)

Cylinder High (LBA 23-16)

Cyl Low (4)

Cylinder Low (LBA 15-8)

Sec Num (3)

Sector Number (LBA 7-0)

Sec Cnt (2)

Sector Count

Feature (1)