ADSP-21991 Controller Datasheet

ADSP-21991 Datasheet, PDF, Equivalent


Part Number

ADSP-21991

Description

Mixed Signal DSP Controller

Manufacture

Analog Devices

Total Page 30 Pages
Datasheet
Download ADSP-21991 Datasheet


ADSP-21991
ataSheet4U.com Mixed Signal ADDSSPPC-o2n1t9r9o1llerKEY FEATURES
ADSP-219x, 16-Bit, Fixed Point DSP Core with up to
a160 MIPS Sustained Performance
.D40K Words of On-Chip RAM, Configured as 32K Words
wOn-Chip 24-Bit Program RAM and 8K Words On-Chip
16-Bit Data RAM
w External Memory Interface
w Dedicated Memory DMA Controller for Data/Instruction
mTransfer between Internal/External Memory
Programmable PLL and Flexible Clock Generation
oCircuitry Enables Full Speed Operation from Low
Speed Input Clocks
.cIEEE JTAG Standard 1149.1 Test Access Port Supports
On-Chip Emulation and System Debugging
8-Channel, 14-Bit Analog-to-Digital Converter System,
Uwith up to 20 MSPS Sampling Rate (at 160 MHz Core
Clock Rate)
Three Phase 16-Bit Center Based PWM Generation Unit
with 12.5 ns Resolution at 160 MHz Core Clock (CCLK)
Rate
Dedicated 32-Bit Encoder Interface Unit with
Companion Encoder Event Timer
Dual 16-Bit Auxiliary PWM Outputs
16 General-Purpose Flag I/O Pins
Three Programmable 32-Bit Interval Timers
SPI Communications Port with Master or Slave
Operation
Synchronous Serial Communications Port (SPORT)
Capable of Software UART Emulation
Integrated Watchdog Timer
Dedicated Peripheral Interrupt Controller with Software
Priority Control
Multiple Boot Modes
Precision 1.0 V Voltage Reference
t4FUNCTIONAL BLOCK DIAGRAM
eeCLOCK
GENERATOR/PLL
ShJTAG
taTEST AND
EMULATION
ADSP-219x
DSP CORE
.DaI/O
BUS
wI/O REGISTERS
32K ؋24
PM RAM
8K ؋16
DM RAM
4K ؋24
PM ROM
PM ADDRESS/DATA
DM ADDRESS/DATA
SPI
EXTERNAL
MEMORY
INTERFACE
(EMI)
ADDRESS
DATA
CONTROL
SPORT
MEMORY DMA
CONTROLLER
ww .comPWM
GENERATION
et4UUNIT
ENCODER
INTERFACE
UNIT
(AND EET)
AUXILIARY
PWM
UNIT
TIMER 0
TIMER 1
TIMER 2
FLAG
I/O
WATCHDOG
TIMER
INTERRUPT
CONTROLLER
(ICNTL)
ADC
CONTROL
POR
PIPELINE
FLASH ADC
VREF
ataSheREV. 0
.DInformation furnished by Analog Devices is believed to be accurate and
wreliable. However, no responsibility is assumed by Analog Devices for its
use, nor for any infringements of patents or other rights of third parties that
wmay result from its use. No license is granted by implication or otherwise
wunder any patent or patent rights of Analog Devices. Trademarks and
One Technology Way, P.O. Box 9106, Norwood, MA 02062-9106, U.S.A.
Tel:781/329-4700
www.analog.com
registered trademarks are the property of their respective companies.
Fax:781/326-8703
© 2003 Analog Devices, Inc. All rights reserved.

ADSP-21991
ADSP-21991
KEY FEATURES (continued)
Integrated Power-On-Reset (POR) Generator
Flexible Power Management with Selectable Power-
Down and Idle Modes
2.5 V Internal Operation with 3.3 V I/O
Operating Temperature Range of –40ºC to +85ºC
196-Ball Mini-BGA Package
176-Lead LQFP Package
TARGET APPLICATIONS
Industrial Motor Drives
Uninterruptible Power Supplies
Optical Networking Control
Data Acquisition Systems
Test and Measurement Systems
Portable Instrumentation
TABLE OF CONTENTS
GENERAL DESCRIPTION . . . . . . . . . . . . . . . . . . . . 2
DSP Core Architecture . . . . . . . . . . . . . . . . . . . . . . . 3
Memory Architecture . . . . . . . . . . . . . . . . . . . . . . . . 4
Internal (On-Chip) Memory . . . . . . . . . . . . . . . . . . 5
External (Off-Chip) Memory . . . . . . . . . . . . . . . . . 5
External Memory Space . . . . . . . . . . . . . . . . . . . . . 5
I/O Memory Space . . . . . . . . . . . . . . . . . . . . . . . . . 5
Boot Memory Space . . . . . . . . . . . . . . . . . . . . . . . . 6
Bus Request and Bus Grant . . . . . . . . . . . . . . . . . . . . 6
DMA Controller . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6
DSP Peripherals Architecture . . . . . . . . . . . . . . . . . . 6
Serial Peripheral Interface (SPI) Port . . . . . . . . . . . . . 7
DSP Serial Port (SPORT) . . . . . . . . . . . . . . . . . . . . . 7
Analog-to-Digital Conversion System . . . . . . . . . . . . 8
Voltage Reference . . . . . . . . . . . . . . . . . . . . . . . . . . . 8
PWM Generation Unit . . . . . . . . . . . . . . . . . . . . . . . 8
Auxiliary PWM Generation Unit . . . . . . . . . . . . . . . . 9
Encoder Interface Unit . . . . . . . . . . . . . . . . . . . . . . . 9
Flag I/O (FIO) Peripheral Unit . . . . . . . . . . . . . . . . 10
Watchdog Timer . . . . . . . . . . . . . . . . . . . . . . . . . . . 10
General-Purpose Timers . . . . . . . . . . . . . . . . . . . . . 10
Interrupts . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10
Peripheral Interrupt Controller . . . . . . . . . . . . . . . . 11
Low Power Operation . . . . . . . . . . . . . . . . . . . . . . . 11
Idle Mode . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11
Power-Down Core Mode . . . . . . . . . . . . . . . . . . . 11
Power-Down Core/Peripherals Mode . . . . . . . . . . 12
Power-Down All Mode . . . . . . . . . . . . . . . . . . . . 12
Clock Signals . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12
Reset and Power-On Reset (POR) . . . . . . . . . . . . . . 12
Power Supplies . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12
Booting Modes . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13
Instruction Set Description . . . . . . . . . . . . . . . . . . . 13
Development Tools . . . . . . . . . . . . . . . . . . . . . . . . . 13
Designing an Emulator-Compatible DSP Board . . . 14
Additional Information . . . . . . . . . . . . . . . . . . . . . . 14
PIN FUNCTION DESCRIPTIONS . . . . . . . . . . . . . 14
SPECIFICATIONS . . . . . . . . . . . . . . . . . . . . . . . . . . 17
ABSOLUTE MAXIMUM RATINGS . . . . . . . . . . 22
ESD SENSITIVITY . . . . . . . . . . . . . . . . . . . . . . . . 22
TIMING SPECIFICATIONS . . . . . . . . . . . . . . . . 22
Clock In and Clock Out Cycle Timing . . . . . . . . . 23
Programmable Flags Cycle Timing . . . . . . . . . . . 24
Timer PWM_OUT Cycle Timing . . . . . . . . . . . . 25
External Port Write Cycle Timing . . . . . . . . . . . . 26
External Port Read Cycle Timing . . . . . . . . . . . . 27
External Port Bus Request/Grant Cycle Timing . . 28
Serial Port Timing . . . . . . . . . . . . . . . . . . . . . . . . 29
Serial Peripheral Interface Port—Master Timing . 32
Serial Peripheral Interface Port—Slave Timing . . 33
JTAG Test And Emulation Port Timing . . . . . . . 34
Power Dissipation . . . . . . . . . . . . . . . . . . . . . . . . . . 35
Test Conditions . . . . . . . . . . . . . . . . . . . . . . . . . . . 35
Output Disable Time . . . . . . . . . . . . . . . . . . . . . . 35
Output Enable Time . . . . . . . . . . . . . . . . . . . . . . 35
Example System Hold Time Calculation . . . . . . . 35
Pin Configurations . . . . . . . . . . . . . . . . . . . . . . . . . 36
OUTLINE DIMENSIONS . . . . . . . . . . . . . . . . . . . . 41
ORDERING GUIDE . . . . . . . . . . . . . . . . . . . . . . . . 42
GENERAL DESCRIPTION
The ADSP-21991 is a mixed signal DSP controller based on the
ADSP-219x DSP Core, suitable for a variety of high performance
industrial motor control and signal processing applications that
require the combination of a high performance DSP and the
mixed signal integration of embedded control peripherals such
as analog-to-digital conversion.
The ADSP-21991 integrates the fixed point ADSP-219x family
base architecture with a serial port, an SPI compatible port, a
DMA controller, three programmable timers, general-purpose
Programmable Flag pins, extensive interrupt capabilities, on-
chip program and data memory spaces, and a complete set of
embedded control peripherals that permits fast motor control
and signal processing in a highly integrated environment.
The ADSP-21991 architecture is code compatible with previous
ADSP-217x based ADMCxxx products. Although the architec-
tures are compatible, the ADSP-21991, with ADSP-219x
architecture, has a number of enhancements over earlier archi-
tectures. The enhancements to computational units, data address
generators, and program sequencer make the ADSP-21991 more
flexible and easier to program than the previous ADSP-21xx
embedded DSPs.
Indirect addressing options provide addressing flexibility—
premodify with no update, pre- and post-modify by an immediate
8-bit, twos complement value and base address registers for easier
implementation of circular buffering.
The ADSP-21991 integrates 40K words of on-chip memory con-
figured as 32K words (24-bit) of program RAM, and 8K words
(16-bit) of data RAM.
Fabricated in a high speed, low power, CMOS process, the
ADSP-21991 operates with a 6.25 ns instruction cycle time for
a 160 MHz CCLK and with a 6.67 ns instruction cycle time for
a 150 MHz CCLK. All instructions, except two multiword
instructions, execute in a single DSP cycle.
–2– REV. 0


Features m o .c U 4 t e e h S a at .D w w w a M ixed Signal DSP Controller ADSP-21991 T hree Phase 16-Bit Center Based PWM Gene ration Unit with 12.5 ns Resolution at 160 MHz Core Clock (CCLK) Rate Dedicate d 32-Bit Encoder Interface Unit with Co mpanion Encoder Event Timer Dual 16-Bit Auxiliary PWM Outputs 16 General-Purpo se Flag I/O Pins Three Programmable 32- Bit Interval Timers SPI Communications Port with Master or Slave Operation Syn chronous Serial Communications Port (SP ORT) Capable of Software UART Emulation Integrated Watchdog Timer Dedicated Pe ripheral Interrupt Controller with Soft ware Priority Control Multiple Boot Mod es Precision 1.0 V Voltage Reference K EY FEATURES ADSP-219x, 16-Bit, Fixed Po int DSP Core with up to 160 MIPS Sustai ned Performance 40K Words of On-Chip RA M, Configured as 32K Words On-Chip 24-B it Program RAM and 8K Words On-Chip 16- Bit Data RAM External Memory Interface Dedicated Memory DMA Controller for Dat a/Instruction Transfer between Internal/External Memory Program.
Keywords ADSP-21991, datasheet, pdf, Analog Devices, Mixed, Signal, DSP, Controller, DSP-21991, SP-21991, P-21991, ADSP-2199, ADSP-219, ADSP-21, Equivalent, stock, pinout, distributor, price, schematic, inventory, databook, Electronic, Components, Parameters, parts, cross reference, chip, Semiconductor, circuit, Electric, manual, substitute




@ 2014 :: Datasheetspdf.com :: Semiconductors datasheet search & download site (Privacy Policy & Contact)