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Z89139 Datasheet

  • Z89139

  • Voice Processing Controllers

  • 435.91KB

  • 66頁

  • ZILOG   ZILOG

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P
RELIMINARY
C
USTOMER
P
ROCUREMENT
S
PECIFICATION
1
Z89138/
Z89139 (ROMLESS)
V
OICE
P
ROCESSING
C
ONTROLLERS
FEATURES
Device
Z89138
Z89139
ROM
(KB)
24
RAM*
(Bytes)
256
256
I/O
Lines
47
47
Voltage
Range
4.5V to 5.5V
4.5V to 5.5V
s
s
s
s
s
s
s
s
s
s
s
s
s
1
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
廬
PC-Based Development Tools
Developer鈥檚 Toolbox for T.A.M. Applications
Note:
*General-Purpose
s
s
s
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
s
Low-Power Consumption - 200 mW (typical)
Two Comparators
RAM and ROM Protect
On-Board Oscillator for 32.768 kHz Real-Time Clock
s
s
IBM is a registered trademark of IBM Corporation.
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
廬
MCU with 24 KB of program
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
programs can be directed by events in each other鈥檚 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).
DS97TAD0201
PRELIMINARY
1

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