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參數資料
型號: W83697HF
廠商: WINBOND ELECTRONICS CORP
元件分類: 外設及接口
英文描述: WINBOND I/O
中文描述: MULTIFUNCTION PERIPHERAL, PQFP128
封裝: PLASTIC, QFP-128
文件頁數: 30/167頁
文件大小: 1094K
代理商: W83697HF
W83697HF/F
Publication Release Date: Feb. 2002
- 21 - Revision 0.70
3.1.5
The FDC is also capable of interfacing directly to perpendicular recording floppy drives. Perpendicular
recording differs from the traditional longitudinal method in that the magnetic bits are oriented vertically.
This scheme packs more data bits into the same area.
Perpendicular Recording Mode
FDCs with perpendicular recording drives can read standard 3.5" floppy disks and can read and write
perpendicular media. Some manufacturers offer drives that can read and write standard and
perpendicular media in a perpendicular media drive.
A single command puts the FDC into perpendicular mode. All other commands operate as they normally
do. The perpendicular mode requires a 1 Mbps data rate for the FDC. At this data rate the FIFO eases
the host interface bottleneck due to the speed of data transfer to or from the disk.
3.1.6
The W83697HF FDC is capable of performing twenty commands. Each command is initiated by a multi-
byte transfer from the microprocessor. The result can also be a multi-byte transfer back to the
microprocessor. Each command consists of three phases: command, execution, and result.
Command
FDC Core
The microprocessor issues all required information to the controller to perform a specific operation.
Execution
The controller performs the specified operation.
Result
After the operation is completed, status information and other housekeeping information is provided to
the microprocessor.
3.1.7
Command Symbol Descriptions:
C:
D:
DIR:
DS0:
DS1:
DTL:
EC:
EOT:
EFIFO:
EIS:
FDC Commands
Cylinder number 0 - 256
Data Pattern
Step Direction
DIR = 0, step out
DIR = 1, step in
Disk Drive Select 0
Disk Drive Select 1
Data Length
Enable Count
End of Track
Enable FIFO
Enable Implied Seek
相關PDF資料
PDF描述
W83697 WINBOND I/O
W83697F WINBOND I/O
W83697SF WINBOND I/O
W83757 SUPER I/O CHIP
W83759 ADVANCED VL-IDE DISK CONTROLLER
相關代理商/技術參數
參數描述
W83697HF_05 制造商:WINBOND 制造商全稱:Winbond 功能描述:LPC I/O
W83697HG 功能描述:IC LPC SUPER I/O 128-PQFP RoHS:是 類別:集成電路 (IC) >> 接口 - 專用 系列:- 標準包裝:3,000 系列:- 應用:PDA,便攜式音頻/視頻,智能電話 接口:I²C,2 線串口 電源電壓:1.65 V ~ 3.6 V 封裝/外殼:24-WQFN 裸露焊盤 供應商設備封裝:24-QFN 裸露焊盤(4x4) 包裝:帶卷 (TR) 安裝類型:表面貼裝 產品目錄頁面:1015 (CN2011-ZH PDF) 其它名稱:296-25223-2
W83697SF 制造商:WINBOND 制造商全稱:Winbond 功能描述:WINBOND I/O
W83697UF 制造商:WINBOND 制造商全稱:Winbond 功能描述:LPC I/O
W83697UG 功能描述:IC LPC SUPER I/O 128-PQFP RoHS:是 類別:集成電路 (IC) >> 接口 - 專用 系列:- 標準包裝:3,000 系列:- 應用:PDA,便攜式音頻/視頻,智能電話 接口:I²C,2 線串口 電源電壓:1.65 V ~ 3.6 V 封裝/外殼:24-WQFN 裸露焊盤 供應商設備封裝:24-QFN 裸露焊盤(4x4) 包裝:帶卷 (TR) 安裝類型:表面貼裝 產品目錄頁面:1015 (CN2011-ZH PDF) 其它名稱:296-25223-2