參數(shù)資料
型號： FDC37C665IR
廠商： SMSC Corporation
英文描述： 3/5 Volt Advanced High-Performance Multi-Mode Parallel Port Super I/O Floppy Disk Controller with Infranred Support
中文描述： 3 / 5伏先進的高性能多模并口超級I / O軟盤與Infranred支持磁盤控制器
文件頁數(shù)： 45/162頁
文件大?。?/td> 562K
代理商： FDC37C665IR
45
Table 20 - Description of Command Symbols
NAME
Head Address
Selected head: 0 or 1 (disk side 0 or 1) as encoded in the sector
ID field.
Head Load Time
The time interval that FDC waits after loading the head and before
initializing a read or write operation. Refer to the Specify
command for actual delays.
Head Unload
Time
write command) until the head is unloaded. Refer to the Specify
command for actual delays.
Lock defines whether EFIFO, FIFOTHR, and PRETRK
parameters of the CONFIGURE COMMAND can be reset to their
default values by a "software Reset". (A reset caused by writing to
the appropriate bits of either tha DSR or DOR)
MFM/FM Mode
Selector
single density (FM) mode.
Multi-Track
Selector
mode, the FDC treats a complete cylinder under head 0 and 1 as
a single track. The FDC operates as this expanded track started
at the first sector under head 0 and ended at the last sector under
head 1. With this flag set, a multitrack read or write operation will
automatically continue to the first sector under head 1 when the
FDC finishes operating on the last sector under head 0.
Sector Size Code
This specifies the number of bytes in a sector. If this parameter is
"00", then the sector size is 128 bytes. The number of bytes
transferred is determined by the DTL parameter. Otherwise the
sector size is (2 raised to the "N'th" power) times 128. All values
up to "07" hex are allowable. "07"h would equal a sector size of
16k. It is the user's responsibility to not select combinations that
are not possible with the drive.
SYMBOL
H/HDS
DESCRIPTION
HLT
HUT
The time interval from the end of the execution phase (of a read or
LOCK
MFM
A one selects the double density (MFM) mode. A zero selects
MT
When set, this flag selects the multi-track operating mode. In this
N
N SECTOR SIZE
00 128 bytes
01 256 bytes
02 512 bytes
03 1024 bytes
.. …
07 16 kbytes
The desired cylinder number.
NCN
New Cylinder
Number
Non-DMA Mode
Flag
ND
When set to 1, indicates that the FDC is to operate in the non-
DMA mode. In this mode, the host is interrupted for each data
transfer. When set to 0, the FDC operates in DMA mode,
interfacing to a DMA controller by means of the DRQ and nDACK
signals.
相關PDF資料
PDF描述
FDC37C665GT High-Performance Multi-Mode Parallel Port Super I/O Floppy Disk Controllers
FDC37C666GT High-Performance Multi-Mode Parallel Port Super I/O Floppy Disk Controllers
FDC37C67X ENHANCED SUPER I/O CONTROLLER WITH FAST IR
FDC37C957FR ULTRA I/O CONTROLLER FOR PORTABLE APPLICATIONS
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相關代理商/技術參數(shù)
參數(shù)描述
FDC37C665IRQFP 制造商:Rochester Electronics LLC 功能描述:- Bulk 制造商:SMSC 功能描述:
FDC37C666GT 制造商:SMSC 制造商全稱:SMSC 功能描述:High-Performance Multi-Mode Parallel Port Super I/O Floppy Disk Controllers
FDC37C669 制造商:SMSC 制造商全稱:SMSC 功能描述:PC 98/99 Compliant Super I/O Floppy Disk Controller with Infrared Support
FDC37C669_07 制造商:SMSC 制造商全稱:SMSC 功能描述:PC 98/99 Compliant Super I/O Floppy Disk Controller with Infrared Support
FDC37C669FRQFP 制造商:Rochester Electronics LLC 功能描述:- Bulk
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