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Z86C95 Datasheet

  • Z86C95

  • CMOS Z8 DIGITAL SIGNAL PROCESSOR (DSP)

  • 18頁

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Z86C95 DSP
CPS DC-4067-13
C
USTOMER
P
ROCUREMENT
S
PECIFICATION
Z86C95
CMOS Z8
廬
D
IGITAL
S
IGNAL
P
ROCESSOR
(DSP)
GENERAL DESCRIPTION
The Z86C95 MCU (Microcontroller Unit ) introduces a new
level of sophistication to Superintegration鈩?ICs. The
Z86C95 is a member of the Z8
廬
single-chip microcontroller
family incorporating a CMOS ROMless Z8 microcontroller
with an embedded DSP processor for digital servo control.
The DSP slave processor can perform 16-bit x 16-bit
multiplicates and accumulates in one clock cycle. Addi-
tionally, the Z86C95 is further enhanced with a hardwired
16-bitx16-bit multiplier and a 32-bit/16-bit divider, three
16-bit counter timers with capture and compare registers,
a half flash 8-channel 8-bit A/D converter with a 2
碌sec
conversion time, an 8-bit DAC with 1/4 programmable gain
stage, UART, serial peripheral interface, and a PWM
output channel (Functional Block Diagram). It is fabricated
using CMOS technology and offered in an 80-pin QFP, 84-
pin PLCC, or 100-pin VQFP package.
The Z86C95 provides up to 16 output address lines thus
permitting an address space of up to 64 Kbytes of data and
program memory each. Eight address outputs (AD7-AD0)
are provided by a multiplexed, 8-bit, Address/Data bus.
The remaining 8 bits are provided via output address bits
A15-A8.
There are 256 registers located on chip and organized as
236 general-purpose registers, 16 control and status reg-
isters, and four I/O port registers. The register file can be
divided into sixteen groups of 16 working registers each.
Configuration of the registers in this manner allows the use
of short format instructions; in addition, any of the indi-
vidual registers can be accessed directly. Also, the Z86C95
contains 512 bytes of DSP Program RAM and 128 words
of DSP data RAM.
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
OPERATING ERRATA
This notice only applies to devices top marked "Z86C9524
ASC/FSC/VSC" with a date code of 9237 or later.
1. A DSP load to the DAC Register fails below approxi-
mately V
CC
= 4.7V.
2. Clipping occurs in the linearity of the DAC with a 100K
load at about 3.3V output (VDHI = 3.5V).
3. I
CC
1 at HALT Mode will show a current of 17-18 mA,
then will jump to 40-70 mA, and will settle between 17-
24 mA. Settling time is about 10-15 seconds.
4. I
CC
2 at STOP Mode and DSP Pause will show a current
of 1-2 mA, then will jump to 5-7 mA, and will settle at 3-
4 mA. Settling time is about 10-15 seconds.
The following operating errata only applies to devices
topmarked with "Z86C95 ASC/FSC/VSC."
1. ICC1 at HALT Mode will show a current of 17-18 mA,
then will jump to 40-70 mA, and will settle between 17-
24 mA. Settling time is about 10-15 seconds.
2. ICC2 at STOP Mode and DSP Pause will show a
current of 1-2 mA, then will jump to 5-7 mA, and will
settle at 3-4 mA. Settling time is about 10-15 seconds.
The following operating errata only applies to devices
topmarked with "Z86C9540 ASC/FSC/VSC or SL 1636."
1. ICC1 at HALT Mode will show a current of 17-18 mA,
then will jump to 40-70 mA, and will settle between 17-
24 mA. Settling time is about 10-15 seconds.
DC-4067-13
(5-17-94)
1

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