CD1283 Datasheet, PDF (10/94 Pages) Intel Corporation – IEEE 1284-Compatible Parallel Interface

CD1283 — IEEE 1284-Compatible Parallel Interface
Benefits
• Multi-protocol bidirectional port for a wide range of applications.
— Up to 2 Mbytes/sec. transfer rate
— Provides future connectivity with new host systems
• Reduces software complexity and guarantees specification compliance.
• High throughput with reduced load on host CPU.
• Direct connection to printer cable; reduces chip count.
• Reduces host interface overhead. High-speed data movement between memory and parallel
port.
• Reduces software complexity and increases throughput of compressed-data tranfers.
Figure 1. Functional Block Diagram
GENERAL-PURPOSE
I/O PORT
DMA
LOGIC
INTERRUPT
LOGIC
HOST INTERFACE
COMPRESSION/
DECOMPRES-
SION
DATA
MOVER
LOGIC
DATA PIPELINE
64 BYTES
FIFO
CONTROL LEVEL-2
STATE ELECTRICAL
MACHINE INTERFACE
IEEE 1284 PERIPHERAL
PARALLEL PORT
10
Datasheet