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LPC47M14X Datasheet(PDF) 31 Page - SMSC Corporation

No. de pieza LPC47M14X
Descripción Electrónicos  128 PIN ENGANCED SUPER I/O CONTROLLER WITH AN LPC INTERFACE AND USB HUB
PDF  205 Pages
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Fabricante Electrónico  SMSC [SMSC Corporation]
Página de inicio  http://www.smsc.com
Logo SMSC - SMSC Corporation

LPC47M14X Datasheet(HTML) 31 Page - SMSC Corporation

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SMSC DS – LPC47M14X
Page 31
Rev. 03/19/2001
Table 6 – Internal 2 Drive Decode - Drives 0 and 1 Swapped
DIGITAL OUTPUT REGISTER
DRIVE SELECT OUTPUTS
(ACTIVE LOW)
MOTOR ON OUTPUTS
(ACTIVE LOW)
Bit 7
Bit 6
Bit 5
Bit 4
Bit1
Bit 0
nDS1
nDS0
nMTR1
nMTR0
X
X
X
1
0
0
0
1
nBIT 4
nBIT 5
X
X
1
X
0
1
1
0
nBIT 4
nBIT 5
X
1
X
X
1
0
1
1
nBIT 4
nBIT 5
1
X
X
X
1
1
1
1
nBIT 4
nBIT 5
0
0
0
0
X
X
1
1
nBIT 4
nBIT 5
Normal Floppy Mode
Normal mode. Register 3F3 contains only bits 0 and 1. When this register is read, bits 2 - 7 are ‘0’.
DB7
DB6
DB5
DB4
DB3
DB2
DB1
DB0
REG 3F3
0
0
0
0
0
0
tape sel1
tape sel0
Enhanced Floppy Mode 2 (OS2)
Register 3F3 for Enhanced Floppy Mode 2 operation.
DB7
DB6
DB5
DB4
DB3
DB2
DB1
DB0
REG 3F3 Reserved Reserved
Drive Type ID
Floppy Boot Drive
tape sel1
tape sel0
Table 7 – Drive Type ID
DIGITAL OUTPUT REGISTER
REGISTER 3F3 - DRIVE TYPE ID
Bit 1
Bit 0
Bit 5
Bit 4
0
0
L0-CRF2 - B1
L0-CRF2 - B0
0
1
L0-CRF2 - B3
L0-CRF2 - B2
1
0
L0-CRF2 - B5
L0-CRF2 - B4
1
1
L0-CRF2 - B7
L0-CRF2 - B6
Note:
L0-CRF2-Bx = Logical Device 0, Configuration Register F2, Bit x.



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