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PCI1520 Datasheet(PDF) 93 Page - Texas Instruments

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Part # PCI1520
Description  PC CARD CONTROLLERS
PDF  138 Pages
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Manufacturer  TI [Texas Instruments]
Direct Link  http://www.ti.com
Logo TI - Texas Instruments

PCI1520 Datasheet(HTML) 93 Page - Texas Instruments

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4−31
4.43 General-Purpose Input Register
The general-purpose input register provides the logical value of the data input from the GPI terminals, MFUNC5,
MFUNC4, and MFUNC2−MFUNC0. Access this register only through function 0. See Table 4−19 for a complete
description of the register contents.
Bit
15
14
13
12
11
10
9
8
7
6
5
4
3
2
1
0
Name
General-purpose input
Type
R
R
R
R
R
R
R
R
R
R
R
R
R
R
R
R
Default
0
0
0
0
0
0
0
0
0
0
0
X
X
X
X
X
Register:
General-purpose input
Offset:
ACh (function 0)
Type:
Read-only
Default:
00XXh
Table 4−19. General-Purpose Input Register Description
BIT
SIGNAL
TYPE
FUNCTION
15−5
RSVD
R
Reserved. Bits 15−5 return 0s when read.
4
GPI4_DATA
R
GPI4 data bit. The value read from bit 4 represents the logical value of the data input from the MFUNC5 terminal.
3
GPI3_DATA
R
GPI3 data bit. The value read from bit 3 represents the logical value of the data input from the MFUNC4 terminal.
2
GPI2_DATA
R
GPI2 data bit. The value read from bit 2 represents the logical value of the data input from the MFUNC2 terminal.
1
GPI1_DATA
R
GPI1 data bit. The value read from bit 1 represents the logical value of the data input from the MFUNC1 terminal.
0
GPI0_DATA
R
GPI0 data bit. The value read from bit 0 represents the logical value of the data input from the MFUNC0 terminal.



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