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ADSP-21992BBC

Mixed-Signal DSP Controller with CAN

Analog Devices 

ADSP-21992

TABLE OF CONTENTS

General Description ................................................. 3

DSP Core Architecture ........................................... 3

Memory Architecture ............................................ 5

Bus Request and Bus Grant ..................................... 6

DMA Controller ................................................... 7

DSP Peripherals Architecture .................................. 7

Serial Peripheral Interface (SPI) Port ......................... 7

DSP Serial Port (SPORT) ........................................ 8

Controller Area Network (CAN) Module ................... 9

Analog-to-Digital Conversion System ........................ 9

Voltage Reference ................................................. 9

PWM Generation Unit ......................................... 10

Auxiliary PWM Generation Unit ............................ 10

Encoder Interface Unit ......................................... 10

Flag I/O (FIO) Peripheral Unit ............................... 11

Watchdog Timer ................................................ 11

General-Purpose Timers ....................................... 11

Interrupts ......................................................... 11

Peripheral Interrupt Controller .............................. 12

Low Power Operation .......................................... 12

Clock Signals ..................................................... 13

Reset and Power-On Reset (POR) ........................... 13

REVISION HISTORY

8/07—Rev. 0 to Rev. A

Added RoHS part number to Ordering Guide ............... 59

Power Supplies ................................................... 14

Booting Modes ................................................... 14

Instruction Set Description .................................... 14

Development Tools .............................................. 15

Designing an Emulator-Compatible DSP Board .......... 16

Additional Information ........................................ 16

Pin Function Descriptions ........................................ 17

Specifications ........................................................ 20

Operating Conditions ........................................... 20

Electrical Characteristics ....................................... 23

Absolute Maximum Ratings ................................... 30

ESD Caution ...................................................... 30

Timing Specifications ........................................... 30

Power Dissipation ............................................... 50

Test Conditions ..................................................... 51

Output Disable Time ............................................ 51

Output Enable Time ............................................ 51

Example System Hold Time Calculation ................... 51

Pin Configurations ................................................. 52

Outline Dimensions ................................................ 57

Ordering Guide ..................................................... 59

Rev. A | Page 2 of 60 | August 2007

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