參數(shù)資料
型號: LPC47M14L-NC
廠商: SMSC Corporation
英文描述: EZ STIX CABLE INSTALLER STICKS
中文描述: 128引腳ENGANCED超級I / O與LPC接口和USB集線器控制器
文件頁數(shù): 41/205頁
文件大小: 1219K
代理商: LPC47M14L-NC
第1頁第2頁第3頁第4頁第5頁第6頁第7頁第8頁第9頁第10頁第11頁第12頁第13頁第14頁第15頁第16頁第17頁第18頁第19頁第20頁第21頁第22頁第23頁第24頁第25頁第26頁第27頁第28頁第29頁第30頁第31頁第32頁第33頁第34頁第35頁第36頁第37頁第38頁第39頁第40頁當前第41頁第42頁第43頁第44頁第45頁第46頁第47頁第48頁第49頁第50頁第51頁第52頁第53頁第54頁第55頁第56頁第57頁第58頁第59頁第60頁第61頁第62頁第63頁第64頁第65頁第66頁第67頁第68頁第69頁第70頁第71頁第72頁第73頁第74頁第75頁第76頁第77頁第78頁第79頁第80頁第81頁第82頁第83頁第84頁第85頁第86頁第87頁第88頁第89頁第90頁第91頁第92頁第93頁第94頁第95頁第96頁第97頁第98頁第99頁第100頁第101頁第102頁第103頁第104頁第105頁第106頁第107頁第108頁第109頁第110頁第111頁第112頁第113頁第114頁第115頁第116頁第117頁第118頁第119頁第120頁第121頁第122頁第123頁第124頁第125頁第126頁第127頁第128頁第129頁第130頁第131頁第132頁第133頁第134頁第135頁第136頁第137頁第138頁第139頁第140頁第141頁第142頁第143頁第144頁第145頁第146頁第147頁第148頁第149頁第150頁第151頁第152頁第153頁第154頁第155頁第156頁第157頁第158頁第159頁第160頁第161頁第162頁第163頁第164頁第165頁第166頁第167頁第168頁第169頁第170頁第171頁第172頁第173頁第174頁第175頁第176頁第177頁第178頁第179頁第180頁第181頁第182頁第183頁第184頁第185頁第186頁第187頁第188頁第189頁第190頁第191頁第192頁第193頁第194頁第195頁第196頁第197頁第198頁第199頁第200頁第201頁第202頁第203頁第204頁第205頁
SMSC DS – LPC47M14X
Page 41
Rev. 03/19/2001
RQM and DIO must both equal "1" before the result bytes may be read. After all the result bytes have been read, the
RQM and DIO bits switch to "1" and "0" respectively, and the CB bit is cleared, indicating that the FDC is ready to accept
the next command.
Command Set/Descriptions
Commands can be written whenever the FDC is in the command phase. Each command has a unique set of needed
parameters and status results. The FDC checks to see that the first byte is a valid command and, if valid, proceeds
with the command. If it is invalid, an interrupt is issued. The user sends a Sense Interrupt Status command, which
returns an invalid command error. Refer to Table 17 for explanations of the various symbols used. Table 18 lists the
required parameters and the results associated with each command that the FDC is capable of performing.
Table 17 – Description of Command Symbols
SYMBOL
C
D
D0, D1
NAME
DESCRIPTION
Cylinder Address The currently selected address; 0 to 255.
Data Pattern
The pattern to be written in each sector data field during formatting.
Drive Select 0-1
Designates which drives are perpendicular drives on the
Perpendicular Mode Command. A "1" indicates a perpendicular
drive.
Direction Control
If this bit is 0, then the head will step out from the spindle during a
relative seek. If set to a 1, the head will step in toward the spindle.
Disk Drive Select DS1 DS0 DRIVE
0 0 Drive 0
0 1 Drive 1
Special Sector
Size
bytes transferred in disk read/write commands. The sector size (N =
0) is set to 128. If the actual sector (on the diskette) is larger than
DTL, the remainder of the actual sector is read but is not passed to
the host during read commands; during write commands, the
remainder of the actual sector is written with all zero bytes. The CRC
check code is calculated with the actual sector. When N is not zero,
DTL has no meaning and should be set to FF HEX.
Enable Count
When this bit is "1" the "DTL" parameter of the Verify command
becomes SC (number of sectors per track).
Enable FIFO
This active low bit when a 0, enables the FIFO. A "1" disables the
FIFO (default).
Enable Implied
Seek
read or write command that requires the C parameter in the
command phase. A "0" disables the implied seek.
End of Track
The final sector number of the current track.
Alters Gap 2 length when using Perpendicular Mode.
Gap Length
The Gap 3 size. (Gap 3 is the space between sectors excluding the
VCO synchronization field).
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 the DSR or DOR)
MFM/FM Mode
Selector
density (FM) mode.
DIR
DS0, DS1
DTL
By setting N to zero (00), DTL may be used to control the number of
EC
EFIFO
EIS
When set, a seek operation will be performed before executing any
EOT
GAP
GPL
H/HDS
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 single
相關PDF資料
PDF描述
LPC47M14M-NC CAT5 MULTI 1X9 VIDEO DISTRIBUTION AMP
LPC47M14Q-NC HD VIEW RECEIVER 2 PORT DAISYCHAINABLE
LPC47M14V-NC AT PRINTER SERIAL CBL DB9 FEMALE - DB25 MALE
LPC47M14R-NC 128 PIN ENGANCED SUPER I/O CONTROLLER WITH AN LPC INTERFACE AND USB HUB
LPC47M14I-NC 128 PIN ENGANCED SUPER I/O CONTROLLER WITH AN LPC INTERFACE AND USB HUB
相關代理商/技術參數(shù)
參數(shù)描述
LPC47M14M-NC 制造商:SMSC 制造商全稱:SMSC 功能描述:128 PIN ENGANCED SUPER I/O CONTROLLER WITH AN LPC INTERFACE AND USB HUB
LPC47M14N-NC 制造商:SMSC 制造商全稱:SMSC 功能描述:128 PIN ENGANCED SUPER I/O CONTROLLER WITH AN LPC INTERFACE AND USB HUB
LPC47M14O-NC 制造商:SMSC 制造商全稱:SMSC 功能描述:128 PIN ENGANCED SUPER I/O CONTROLLER WITH AN LPC INTERFACE AND USB HUB
LPC47M14P-NC 制造商:SMSC 制造商全稱:SMSC 功能描述:128 PIN ENGANCED SUPER I/O CONTROLLER WITH AN LPC INTERFACE AND USB HUB
LPC47M14Q-NC 制造商:SMSC 制造商全稱:SMSC 功能描述:128 PIN ENGANCED SUPER I/O CONTROLLER WITH AN LPC INTERFACE AND USB HUB