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Z89390 Datasheet

  • Z89390

  • 16-BIT DIGITAL SIGNAL PROCESSOR

  • 11頁

  • ZILOG   ZILOG

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Z
ILOG
P R E L I M I N A R Y
Z89390
CPS DC-9030-01
P
RELIMINARY
C
USTOMER
P
ROCUREMENT
S
PECIFICATION
Z89390
16-B
IT
D
IGITAL
S
IGNAL
P
ROCESSOR
GENERAL DESCRIPTION
The Z89390 is a CMOS Digital Signal Processor (DSP).
Single-cycle instruction execution and a Harvard bus
structure promotes efficient algorithm execution. The
processor contains 512 word data RAM and 64K word of
external program address space is accessible. Six register
pointers provide circular buffering capabilities and dual
operand fetching. Three vectored interrupts are
complemented by a six level stack. The CODEC interface
enables high-speed transfer rates to accommodate digital
audio and voice data. A dedicated Counter/Timer provides
the necessary timing signals for the CODEC interface. An
additional 13-bit timer is available for general-purpose
use.
The Z89390 is optimized to accommodate intricate signal
processing algorithms. The 20-MIP operating performance
and efficient architecture provides real-time execution.
Compression, filtering, frequency detection, audio, voice
detection/synthesis and other available algorithms can all
be accommodated. The on-board peripherals provide
additional cost advantages.
Development tools for the IBM PC include a relocatable
assembler, a linker loader debugger.
Notes:
All Signals with a preceding front slash, "/", are active Low, e.g.,
B//W (WORD is active Low); /B/W (BYTE is active Low, only).
Power connections follow conventional descriptions below:
Connection
Power
Ground
Circuit
V
CC
GND
Device
V
DD
V
SS
DC 9030-00
1

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