Z89371 Zilog., Z89371 Datasheet - Page 2

• Manufacturer Part Number: Z89371
• Description: 16-Bit Digital Signal Processors
• Manufacturer: Zilog.

Z89321/371/391
16-Bit Digital Signal Processors
The Z893XX DSPs are optimized to accommodate ad-
vanced signal processing algorithms. The 24 MIPS (maxi-
mum) operating performance and efficient architecture
provides real-time instruction execution. Compression, fil-
tering, frequency detection, audio, voice detection/synthe-
sis, and other vital algorithms can all be accommodated.
The Z89321/371/391 devices feature an on-board CO-
DEC interface, compatible with 8-bit PCM and 16-bit CO-
DECs for digital audio applications. Additionally, an on-
board wait-state generator is provided to accommodate
slow external peripherals.
For prototypes, as well as production purposes, the
Z89371 member of the DSP product family is a one-time
2
PD0-15
/RESET
PA0-15
INT0-2
HALT
CLK
Program
Control
Unit
PADDR
PDATA
Accumulator
Arithmetic
Logic Unit
Figure 1. Z89321/371/391 Functional Block Diagram
(ALU)
X
Multiplier
Shifter
ROM/OTP
Program
4096x16
P
Y
DDAT A
XDAT A
P R E L I M I N A R Y
Data RAM0
256x16
DP0-3
ADDR
GEN0
P0
P1
P2
pro-grammable (OTP) device with a 16 MHz maximum op-
erating frequency.
Notes: All signals with a preceding front slash, "/", are
active Low. For example, B//W (WORD is active Low);
/B/W (BYTE is active Low, only).
Power connections follow conventional descriptions be-
low:
Connection
DP4-6
ADDR
GEN1
P0
P1
P2
Ground
Power
Data RAM1
256x16
Circuit
GND
V
CC
13-Bit Timer
Full Duplex,
Serial Port
10 MBPS
8/16-Bit,
User I/O
DS97DSP0100
Device
V
V
UI1-0
EA0-2
EXT0-15
/DS
WAIT
RD//WR
TXD
RXD
SCLK
FS0
FS1
UO1-0
DD
SS
Zilog