LPC47B272-MS SMSC, LPC47B272-MS Datasheet - Page 37

• Manufacturer Part Number: LPC47B272-MS
• Description: IC CTRLR SUPER I/O LPC 100-QFP
• Manufacturer: SMSC

Specifications of LPC47B272-MS

• Controller Type: I/O Controller
• Interface: LPC
• Voltage - Supply: 3.3V
• Current - Supply: 15mA
• Operating Temperature: 0°C ~ 70°C
• Mounting Type: Surface Mount
• Package / Case: 100-QFP
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Other names: 638-1019

SMSC LPC47B27x
N
NCN
ND
OW
PCN
POLL
PRETRK
R
RCN
SC
SK
SRT
ST0
ST1
ST2
ST3
WGATE
SYMBOL
Sector Size Code
New Cylinder
Number
Non-DMA Mode
Flag
Overwrite
Present Cylinder
Number
Precompensation
Start Track
Number
Sector Address
Relative Cylinder
Number
Number of
Sectors Per Track
Step Rate Interval
Status 0
Status 1
Status 2
Status 3
Write Gate
Polling Disable
Skip Flag
NAME
Table 16 - Description of Command Symbols
This specifies the number of bytes in a sector. If this parameter is
"00", then the sector size is 128 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.
N
00
01
02
03
…
07
The desired cylinder number.
Write ‘0’. This part does not support non-DMA mode
The bits D0-D3 of the Perpendicular Mode Command can only be
modified if OW is set to 1. OW id defined in the Lock command.
The current position of the head at the completion of Sense Interrupt
Status command.
When set, the internal polling routine is disabled. When clear, polling
is enabled.
Programmable from track 00 to FFH.
The sector number to be read or written. In multi-sector transfers,
this parameter specifies the sector number of the first sector to be
read or written.
Relative cylinder offset from present cylinder as used by the Relative
Seek command.
The number of sectors per track to be initialized by the Format
command. The number of sectors per track to be verified during a
Verify command when EC is set.
When set to 1, sectors containing a deleted data address mark will
automatically be skipped during the execution of Read Data. If Read
Deleted is executed, only sectors with a deleted address mark will be
accessed. When set to "0", the sector is read or written the same as
the read and write commands.
The time interval between step pulses issued by the FDC.
Programmable from 0.5 to 8 milliseconds in increments of 0.5 ms at
the 1 Mbit data rate. Refer to the SPECIFY command for actual
delays.
Registers within the FDC which store status information after a
command has been executed. This status information is available to
the host during the result phase after command execution.
Alters timing of WE to allow for pre-erase loads in perpendicular
drives.
SECTOR SIZE
16K Bytes
128 Bytes
256 Bytes
512 Bytes
1024 Bytes
…
DATASHEET
- 37 -
DESCRIPTION
The number of bytes
Rev. 04-17-07