最新免费av在线观看,亚洲综合一区成人在线,中文字幕精品无码一区二区三区,中文人妻av高清一区二区,中文字幕乱偷无码av先锋

LPC47M172_07 Datasheet

  • LPC47M172_07

  • SMSC Corporation [Advanced I/O Controller with Motherboard ...

  • 1113.49KB

  • SMSC   SMSC

掃碼查看芯片數(shù)據(jù)手冊

上傳產(chǎn)品規(guī)格書

PDF預(yù)覽

Advanced I/O Controller with Motherboard GLUE Logic
Datasheet
Table 6.16 - Description of Command Symbols
SYMBOL
C
D
D0, D1
NAME
Cylinder Address
Data Pattern
Drive Select 0-1
DESCRIPTION
The currently selected address; 0 to 255.
The pattern to be written in each sector data field during formatting.
Designates which drives are perpendicular drives on the
Perpendicular Mode Command. A 鈥?鈥?indicates a perpendicular
drive.
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.
DS1
DS0
DRIVE
0
0
Drive 0
0
1
Drive 1
By setting N to zero (00), DTL may be used to control the number
of 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.
When this bit is 鈥?鈥?the 鈥淒TL鈥?parameter of the Verify command
becomes SC (number of sectors per track).
This active low bit when a 0, enables the FIFO. A 鈥?鈥?disables the
FIFO (default).
When set, a seek operation will be performed before executing any
read or write command that requires the C parameter in the
command phase. A 鈥?鈥?disables the implied seek.
The final sector number of the current track.
Alters Gap 2 length when using Perpendicular Mode.
The Gap 3 size. (Gap 3 is the space between sectors excluding
the VCO synchronization field).
Selected head: 0 or 1 (disk side 0 or 1) as encoded in the sector ID
field.
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.
The time interval from the end of the execution phase (of a read or
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 鈥渟oftware Reset鈥? (A reset caused by writing to the appropriate
bits of either the DSR or DOR)
A one selects the double density (MFM) mode. A zero selects
single density (FM) mode.
When set, this flag selects the multi-track operating mode. In this
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.
DIR
DS0, DS1
Direction Control
Disk Drive Select
DTL
Special Sector
Size
EC
EFIFO
EIS
Enable Count
Enable FIFO
Enable Implied
Seek
End of Track
Gap Length
Head Address
Head Load Time
EOT
GAP
GPL
H/HDS
HLT
HUT
Head Unload
Time
LOCK
MFM
MT
MFM/FM Mode
Selector
Multi-Track
Selector
SMSC/Non-SMSC Register Sets (Rev.
01-11-07)
Page 54
SMSC LPC47M172
DATASHEET

LPC47M172_07 PDF文件相關(guān)型號

LPC47M172-NW

LPC47M172_07相關(guān)型號PDF文件下載

您可能感興趣的PDF文件資料

熱門IC型號推薦

掃碼下載APP，
一鍵連接廣大的電子世界。

在線人工客服

買家服務(wù)：
賣家服務(wù)：
技術(shù)客服：

0571-85317607

網(wǎng)站技術(shù)支持

13606545031

客服在線時間周一至周五
9:00-17:30

關(guān)注官方微信號，
第一時間獲取資訊。

建議反饋
返回頂部

建議反饋

聯(lián)系人：

聯(lián)系方式：

按住滑塊，拖拽到最右邊
>>
感謝您向阿庫提出的寶貴意見，您的參與是維庫提升服務(wù)的動力！意見一經(jīng)采納，將有感恩紅包奉上哦！