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General Description
The Nm9755 is a PCI based printer port with external
I/O interface. Nm9755 fully supports the existing Centronics
printer interface as well as PS/2, EPP, and ECP modes.
The Nm9755 is ideally suited for PC applications, such
as high speed parallel / serial ports. The Nm9755 is available
in a 128-pin QFP package. It is fabricated using an advanced
submicron CMOS process to achieve low drain power and high speed
requirements.
Features
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Single 5V operation
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Low power |
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PCI compatible 1284 printer port
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Multi-mode compatible controller
(SPP, PS2, EPP, ECP)
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Fast data rates up to 1.5 Mbytes/s
(parallel port)
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16 byte FIFO
(parallel) |
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Microsoft
Windows compatible registers |
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Software
programmable mode selects |
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On-chip oscillator |
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Re-map function
for legacy ports |
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ISA style
I/O interface |
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3 address
lines |
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4 active
high interrupts |
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1 active
low interrupt |
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4 external
chip selects |
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128-pin QFP
package |
Applications
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I/O bridge
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Portable
backup units |
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Embedded applications
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Monitoring
equipment |
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Add-on I/O
cards |
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Printer server |
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Printer interface |
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