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ADSP-21990BBC Datasheet

  • ADSP-21990BBC

  • Analog Devices [Mixed Signal DSP Controller]

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a
KEY FEATURES
ADSP-219x, 16-Bit, Fixed Point DSP Core with up to
160 MIPS Sustained Performance
8K Words of On-Chip RAM, Configured as 4K Words On-
Chip 24-Bit Program RAM and 4K Words On-Chip
16-Bit Data RAM
External Memory Interface
Dedicated Memory DMA Controller for Data/Instruction
Transfer between Internal/External Memory
Programmable PLL and Flexible Clock Generation
Circuitry Enables Full Speed Operation from Low
Speed Input Clocks
IEEE JTAG Standard 1149.1 Test Access Port Supports
On-Chip Emulation and System Debugging
8-Channel, 14-Bit Analog-to-Digital Converter System,
with up to 20 MSPS Sampling Rate (at 160 MHz Core
Clock Rate)
Mixed Signal DSP Controller
ADSP-21990
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
FUNCTIONAL BLOCK DIAGRAM
CLOCK
GENERATOR/PLL
JTAG
TEST AND
EMULATION
ADSP-219x
DSP CORE
4K 24
PM RAM
4K 16
DM RAM
4K 24
PM ROM
ADDRESS
EXTERNAL
MEMORY
INTERFACE
(EMI)
I/O
BUS
DATA
CONTROL
PM ADDRESS/DATA
DM ADDRESS/DATA
I/O REGISTERS
SPI
SPORT
MEMORY DMA
CONTROLLER
PWM
GENERATION
UNIT
ENCODER
INTERFACE
UNIT
(AND EET)
TIMER 0
AUXILIARY
PWM
UNIT
TIMER 1
TIMER 2
FLAG
I/O
WATCHDOG
TIMER
INTERRUPT
CONTROLLER
(ICNTL)
ADC
CONTROL
PIPELINE
FLASH ADC
POR
VREF
REV. 0
Information furnished by Analog Devices is believed to be accurate and
reliable. However, no responsibility is assumed by Analog Devices for its
use, nor for any infringements of patents or other rights of third parties that
may result from its use. No license is granted by implication or otherwise
under any patent or patent rights of Analog Devices. Trademarks and
registered trademarks are the property of their respective companies.
One Technology Way, P.O. Box 9106, Norwood, MA 02062-9106, U.S.A.
Tel:781/329-4700
www.analog.com
Fax:781/326-8703
漏
2003 Analog Devices, Inc. All rights reserved.

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