PRELIMINARY TECHNICAL DATA
a
Mixed Signal DSP Controller With CAN
ADSP-21992
8-Channel, 20 MSPS, 14-bit Analog to Digital Converter
System
Preliminary Technical Data
MIXED SIGNAL DSP CONTROLLER FEATURES
ADSP-219x, 16-bit, Fixed Point DSP Core with up to 160
MIPS sustained performance
48K Words of On chip RAM, Configured as 32K Words
On chip 24-bit Program RAM and 16K Words On chip
16-bit Data RAM
Three Phase 16-bit Center Based PWM Generation Unit
with 12.5 ns resolution
Dedicated 32-bit Encoder Interface Unit with
Companion Encoder Event Timer
External Memory Interface
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
Controller Area Network (CAN) Module Fully Compliant
with V2.0B Standard
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
FUNCTIONAL BLOCK DIAGRAM
CLOCK
GENERATOR / PLL
16K X 16
DMRAM
(BLOCK 1)
4K X 24
PMROM
(BLOCK 2)
160 MHZ
ADSP-219X
DSP
32K X 24
PM RAM
(BLOCK 0)
JTAG
TEST &
EMULATION
ADDRESS
EXTERNAL
MEMORY
INTERFACE
(EMI)
DATA
I/O
BUS
PM ADDRESS/DATA
CONTROL
DM ADDRESS/DATA
I/O REGISTERS
CONTROLLER
AREA
NETWORK
(CAN)
SPI
SPORT
MEMORY DMA
CONTROLLER
TIMER 0
TIMER 1
TIMER 2
INTERRUPT
CONTROLLER
(ICNTL)
PWM
GENERATION
UNIT
ENCODER
INTERFACE
UNIT
(AND EET)
AUXILIARY
PWM
UNIT
PIPELINE
FLASH ADC
ADC
CONTROL
WATCHDOG
TIMER
FLAG
I/O
VREF
POR
REV. PrA
This information applies to a product under development. Its characteristics and specifi- One Technology Way, P.O.Box 9106, Norwood, MA 02062-9106, U.S.A.
cations are subject to change without notice. Analog Devices assumes no obligation Tel:781/329-4700 www.analog.com
regarding future manufacturing unless otherwise agreed to in writing. Fax:781/326-8703 ©Analog Devices,Inc., 2002