W83627SF-AW Winbond, W83627SF-AW Datasheet - Page 50
W83627SF-AW
Manufacturer Part Number
W83627SF-AW
Description
Manufacturer
Winbond
Datasheet
1.W83627SF-AW.pdf
(116 pages)
Specifications of W83627SF-AW
Pin Count
128
Lead Free Status / RoHS Status
Not Compliant
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Bit 7, 6: These two bits are a logic one during a read. They can be written.
Bit 5: Direction control bit
Bit 4: A 1 in this position allows an interrupt to occur when
Bit 3: A 1 in this bit position selects the printer.
Bit 2: A 0 starts the printer (50 microsecond pulse, minimum).
Bit 1: A 1 causes the printer to line-feed after a line is printed.
Bit 0: A 0.5 microsecond minimum high active pulse clocks data into the printer. Valid data must be
8.2.4 EPP Address Port
The address port is available only in EPP mode. Bit definitions are as follows:
The contents of DB0-DB7 are buffered (non-inverting) and output to ports PD0-PD7 during a write
operation. The leading edge of IOW#
trailing edge of IOW# latches the data for the duration of the EPP write cycle.
PD0-PD7 ports are read during a read operation. The leading edge of IOR# causes an EPP address
read cycle to be performed and the data to be output to the host CPU.
When this bit is a logic 1, the parallel port is in input mode (read); when it is a logic 0, the
parallel port is in output mode (write). This bit can be read and written. In SPP mode, this bit is
invalid and fixed at zero.
present for a minimum of 0.5 microseconds before and after the strobe pulse.
1
7
7
6
1
6
5
c
auses an EPP address write cycle to be performed, and the
5
4
3
4
2
-50-
3
1
2
0
ACK#
1
STROBE
AUTO FD
INIT
SLCT IN
IRQ ENABLE
DIR
0
changes from low to high.
PD0
PD1
PD2
PD3
PD4
PD5
PD6
PD7
W83627SF
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