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SCD1284 датащи(PDF) 18 Page - Intel Corporation

номер детали SCD1284
подробное описание детали  IEEE 1284-Compatible Parallel Interface Controller with Two High-Speed Asynchronous Serial Ports
PDF  176 Pages
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производитель  INTEL [Intel Corporation]
домашняя страница  http://www.intel.com
Logo INTEL - Intel Corporation

SCD1284 датащи(HTML) 18 Page - Intel Corporation

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CD1284 — IEEE 1284-Compatible Parallel Interface Controller
18
Datasheet
3.2
Pin List
The following conventions are used in the pin-description tables:
• (*) after a name indicates that the signal is active-low
• ‘I’ indicates the pin is input-only
• ‘O’ indicates the pin is output-only
• ‘I/O’ indicates the pin is bidirectional
• ‘OD’ indicates an open-drain output that the user must tie to VCC through a pull-up resistor
(usually about 1 k
Ω)
• ‘AR’ indicates active release (pin drives to ‘1’ and releases to ‘OD’)
• ‘TS’ indicates tristate
• a ‘–’ indicates ascending pin numbers
• a ‘:’ indicates descending pin numbers
Pin
Names
Compati-
bility
Reverse
Nibble
Mode
Reverse
Byte
Mode
ECP Mode
EPP
Mode
Inputs
A_128
4
SLCTIN*
A_1284
A_1284
A_1284
nAStrb
HstBsy
AUTOFD*
HstBsy
HstBsy
HstAck
nDStrb
HstClk
STROBE*
HstClk
HstClk
HstClk
nWrite
nInit
INIT*
nInit
nInit
nRevReq
nInit
Outputs
AkDaR
q
PError
AkDaRq
AkDaRq
nAkRev
USER1
PerBsy
BUSY
PerBsy
PerBsy
PerAck
nWait
PerClk
ACK*
PerClk
PerClk
PerClk
Intr
nDatAv
FAULT*
nDatAv
nDatAv
nPerReq
USER2
XFlag
SELECT
XFlag
XFlag
XFlag
USER3
Pin Name
Type
Number
of Pins
Pin
Number
Reset
State
(Sheet 1 of 3)
5V
–
5
11, 50, 65,
81, 100
GND
–
7
1,10, 30,
40, 52, 72,
91
RESET*
I
1
79



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