LPC47M112-MW SMSC, LPC47M112-MW Datasheet - Page 31
LPC47M112-MW
Manufacturer Part Number
LPC47M112-MW
Description
Ethernet ICs Enhanced Super I/O Cntrl LPC Interface
Manufacturer
SMSC
Datasheet
1.LPC47M112-MW.pdf
(204 pages)
Specifications of LPC47M112-MW
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
Available stocks
Company
Part Number
Manufacturer
Quantity
Price
Company:
Part Number:
LPC47M112-MW
Manufacturer:
SMSC
Quantity:
2 014
Company:
Part Number:
LPC47M112-MW
Manufacturer:
Microchip Technology
Quantity:
10 000
Part Number:
LPC47M112-MW
Manufacturer:
SMSC
Quantity:
20 000
- Current page: 31 of 204
- Download datasheet (2Mb)
Enhanced Super I/O Controller with LPC Interface
Datasheet
BIT 0 and 1 DATA RATE SELECT
These bits control the data rate of the floppy controller. See Table 8 for the settings corresponding to the individual data
rates. The data rate select bits are unaffected by a software reset, and are set to 250 Kbps after a hardware reset.
BIT 2 through 4 PRECOMPENSATION SELECT
These three bits select the value of write precompensation that will be applied to the WDATA output signal. Table 7
shows the precompensation values for the combination of these bits settings. Track 0 is the default starting track
number to start precompensation. this starting track number can be changed by the configure command.
BIT 5 UNDEFINED
Should be written as a logic "0".
BIT 6 LOW POWER
A logic "1" written to this bit will put the floppy controller into manual low power mode. The floppy controller clock and
data separator circuits will be turned off. The controller will come out of manual low power mode after a software reset
or access to the Data Register or Main Status Register.
BIT 7 SOFTWARE RESET
This active high bit has the same function as the DOR RESET (DOR bit 2) except that this bit is self clearing.
Note: The DSR is Shadowed in the Floppy Data Rate Select Shadow Register, located at the offset 0x1F in the
runtime register block. Separator circuits will be turned off. The controller will come out of manual low power.
SMSC DS – LPC47M112
DRT1
DRIVE RATE
0
0
0
0
0
0
0
0
1
1
1
1
PRECOMP
432
111
001
010
011
100
101
110
000
DRT0
0
0
0
0
1
1
1
1
0
0
0
0
Table 7 - Precompensation Delays
SEL1
DATA RATE
1
0
0
1
1
0
0
1
1
0
0
1
Default: See Table 10
SEL0
DATASHEET
PRECOMPENSATION DELAY (nsec)
1
0
1
0
1
0
1
0
1
0
1
0
<2Mbps
Table 8 - Data Rates
125.00
166.67
208.33
250.00
Default
41.67
83.34
0.00
1Meg
1Meg
1Meg
2Meg
MFM
500
300
250
500
500
250
500
250
Page 31
DATA RATE
250
150
125
250
250
125
250
125
FM
---
---
---
---
DENSEL
2Mbps
Default
104.2
20.8
41.7
62.5
83.3
125
0
1
1
0
0
1
1
0
0
1
1
0
0
DRATE(1)
1
1
0
0
1
1
0
0
1
1
0
0
1
0
1
0
1
0
1
0
1
0
1
0
1
0
Rev. 02-16-07
Related parts for LPC47M112-MW
Image
Part Number
Description
Manufacturer
Datasheet
Request
R
Part Number:
Description:
FAST ETHERNET PHYSICAL LAYER DEVICE
Manufacturer:
SMSC Corporation
Datasheet:
Part Number:
Description:
357-036-542-201 CARDEDGE 36POS DL .156 BLK LOPRO
Manufacturer:
SMSC Corporation
Datasheet:
Part Number:
Description:
357-036-542-201 CARDEDGE 36POS DL .156 BLK LOPRO
Manufacturer:
SMSC Corporation
Datasheet:
Part Number:
Description:
357-036-542-201 CARDEDGE 36POS DL .156 BLK LOPRO
Manufacturer:
SMSC Corporation
Datasheet:
Part Number:
Description:
4-PORT USB2.0 HUB CONTROLLER
Manufacturer:
SMSC Corporation
Datasheet:
Part Number:
Description:
Manufacturer:
SMSC Corporation
Datasheet:
Part Number:
Description:
Manufacturer:
SMSC Corporation
Datasheet:
Part Number:
Description:
FDC37C672ENHANCED SUPER I/O CONTROLLER WITH FAST IR
Manufacturer:
SMSC Corporation
Datasheet:
Part Number:
Description:
COM90C66LJPARCNET Controller/Transceiver with AT Interface and On-Chip RAM
Manufacturer:
SMSC Corporation
Datasheet:
Part Number:
Description:
Manufacturer:
SMSC Corporation
Datasheet:
Part Number:
Description:
Manufacturer:
SMSC Corporation
Datasheet:
Part Number:
Description:
Manufacturer:
SMSC Corporation
Datasheet:
Part Number:
Description:
Manufacturer:
SMSC Corporation
Datasheet: