CD1283 Datasheet, PDF (44/94 Pages) Intel Corporation – IEEE 1284-Compatible Parallel Interface

CD1283 — IEEE 1284-Compatible Parallel Interface
Figure 11. External Buffer Control
TO CD1283
PDBEN
EBDIR
B
A
TO CABLE
G
Impedance matching and protection
circuitry (Figure 10) as required for the
DIR
74AS245.
5.10
Hardware Configurations
The simplicity of the CPU interface to the CD1283 allows the device to be designed into systems
that employ popular microprocessors such as the Intel 80x86 family (8086, 80286, 80386, and so
on) and the Motorola^ family (68000, 68010, 68020, and so on).
An example of CD1283 configuration for a laser-printer application is shown in Figure 12. This
example provides a parallel interface, as well as general-purpose I/O for static control/status.
Figure 12. Sample System Block Diagram
CONTROL
PROCESSOR
ROM
RAM
ADDRESS BUS
DATA BUS
GENERAL-PURPOSE I/O:
INTERNAL STATUS
AND CONTROL
CD1283
IEEE 1284
PARALLEL CHANNEL
44
Datasheet