z89138 ZiLOG Semiconductor, z89138 Datasheet
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z89138
Manufacturer Part Number
z89138
Description
Voice Processing Controllers
Manufacturer
ZiLOG Semiconductor
Datasheet
1.Z89138.pdf
(66 pages)
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FEATURES
Note: *General-Purpose
GENERAL DESCRIPTION
The Z89138/Z89139 is a fully integrated, dual processor
controller designed for voice processing applications. The
I/O control processor is a Z8
memory, two 8-bit counter/timers, and up to 47 I/O pins.
The DSP is a 16-bit processor with a 24-bit ALU and accu-
mulator, 512x16 bits of RAM, single cycle instructions, and
6K words of program ROM. The chip also contains a half-
flash 8-bit A/D converter with up to a 16 kHz sample rate
and a 10-bit PWM D/A converter. The sampling rates for
the converters are programmable. The precision of the 8-
bit A/D can be extended by resampling the data at a lower
rate in software. The Z8 and DSP processors are coupled
by mailbox registers and an interrupt system. DSP or Z8
DS97TAD0201
Z89138
Z89139
Device
Watch-Dog Timer and Power-On Reset
Improved Low-Power STOP Mode
On-Chip Oscillator that Accepts a Crystal or External
Clock Drive
Improved Global Power-Down Mode
Low-Power Consumption - 200 mW (typical)
Two Comparators
RAM and ROM Protect
On-Board Oscillator for 32.768 kHz Real-Time Clock
ROM
(KB)
24
(Bytes)
RAM*
256
256
®
MCU with 24 KB of program
Lines
I/O
47
47
P
4.5V to 5.5V
4.5V to 5.5V
RELIMINARY
Voltage
Range
P R E L I M I N A R Y
Z89138/
Z89139 (ROMLESS)
V
IBM is a registered trademark of IBM Corporation.
programs can be directed by events in each other’s do-
main.
The Z89139 is the ROMless version of the Z89138. How-
ever, the on-chip DSP is not ROMless.
Notes: All Signals with a preceding front slash, "/", are ac-
tive Low. For example, B//W (WORD is active Low); /B/W
(BYTE is active Low, only).
C
OICE
USTOMER
Clock Speeds of 20.48 or 29.49 MHz
16-Bit Digital Signal Processor (DSP)
6K Word DSP Program ROM
512 Words On-Chip DSP RAM
8-Bit A/D Converter with up to 16 kHz Sample Rate
10-Bit PWM D/A Converter
Six Vectored, Prioritized Z8 Interrupts
Three Vectored, Prioritized DSP Interrupts
Two DSP Timers to Support Different A/D and D/A
Sampling Rates
IBM
Developer’s Toolbox for T.A.M. Applications
®
P
PC-Based Development Tools
ROCESSING
P
ROCUREMENT
C
ONTROLLERS
S
PECIFICATION
1
1
1
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