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LPC47M14X 数据表(PDF) 33 Page - SMSC Corporation

部件名 LPC47M14X
功能描述  128 PIN ENGANCED SUPER I/O CONTROLLER WITH AN LPC INTERFACE AND USB HUB
PDF  205 Pages
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制造商  SMSC [SMSC Corporation]
网页  http://www.smsc.com
标志 SMSC - SMSC Corporation

LPC47M14X 数据表(HTML) 33 Page - SMSC Corporation

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SMSC DS – LPC47M14X
Page 33
Rev. 03/19/2001
Table 9 – Data Rates
DRIVE RATE
DATA RATE
DATA RATE
DRATE(1)
DRT1
DRT0
SEL1
SEL0
MFM
FM
DENSEL
1
0
0
0
1
1
1Meg
---
1
1
1
0
0
0
0
500
250
1
0
0
0
0
0
1
300
150
0
0
1
0
0
1
0
250
125
0
1
0
0
1
1
1
1Meg
---
1
1
1
0
1
0
0
500
250
1
0
0
0
1
0
1
500
250
0
0
1
0
1
1
0
250
125
0
1
0
1
0
1
1
1Meg
---
1
1
1
1
0
0
0
500
250
1
0
0
1
0
0
1
2Meg
---
0
0
1
1
0
1
0
250
125
0
1
0
Drive Rate Table (Recommended) 00 = 360K, 1.2M, 720K, 1.44M and 2.88M Vertical Format
01 = 3-Mode Drive
10 = 2 Meg Tape
Note 1: The DRATE and DENSEL values are mapped onto the DRVDEN pins.
Table 10 – DRVDEN Mapping
DT1
DT0
DRVDEN1 (1)
DRVDEN0 (1)
DRIVE TYPE
0
0
DRATE0
DENSEL
4/2/1 MB 3.5"
2/1 MB 5.25" FDDS
2/1.6/1 MB 3.5" (3-MODE)
1
0
DRATE0
DRATE1
0
1
DRATE0
nDENSEL
PS/2
1
1
DRATE1
DRATE0
Table 11 – Default Precompensation Delays
DATA RATE
PRECOMPENSATION
DELAYS
2 Mbps
1 Mbps
500 Kbps
300 Kbps
250 Kbps
20.8 ns
41.67 ns
125 ns
125 ns
125 ns



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