ADSP-2104 Analog Devices, ADSP-2104 Datasheet - Page 2

• Manufacturer Part Number: ADSP-2104
• Description: Low Cost DSP Microcomputers
• Manufacturer: Analog Devices

ADSP-2104/ADSP-2109
The ADSP-2109 is a memory-variant version of the ADSP-
2104 and contains factory-programmed on-chip ROM program
memory.
The ADSP-2109 eliminates the need for an external boot EPROM
in your system, and can also eliminate the need for any external
program memory by fitting the entire application program in
on-chip ROM. This device provides an excellent option for
volume applications where board space and system cost constraints
are of critical concern.
Development Tools
The ADSP-2104/ADSP-2109 processors are supported by a
complete set of tools for system development. The ADSP-2100
Family Development Software includes C and assembly
language tools that allow programmers to write code for any
ADSP-21xx processor. The ANSI C compiler generates ADSP-
21xx assembly source code, while the runtime C library provides
ANSI-standard and custom DSP library routines. The ADSP-
21xx assembler produces object code modules which the linker
combines into an executable file. The processor simulators provide
an interactive instruction-level simulation with a reconfigurable,
TABLE OF CONTENTS
GENERAL DESCRIPTION . . . . . . . . . . . . . . . . . . . . . . . . 1
Development Tools . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2
Additional Information . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2
ARCHITECTURE OVERVIEW . . . . . . . . . . . . . . . . . . . . 3
Serial Ports . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4
Interrupts . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4
Pin Definitions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5
SYSTEM INTERFACE . . . . . . . . . . . . . . . . . . . . . . . . . . . 5
Clock Signals . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5
Reset . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6
Program Memory Interface . . . . . . . . . . . . . . . . . . . . . . . . . 6
Program Memory Maps . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7
Data Memory Interface . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7
Data Memory Map . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7
Boot Memory Interface . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8
Bus Interface . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8
Low Power IDLE Instruction . . . . . . . . . . . . . . . . . . . . . . . 8
ADSP-2109 Prototyping . . . . . . . . . . . . . . . . . . . . . . . . . . . 9
Ordering Procedure for ADSP-2109 ROM Processors . . . . 9
Instruction Set . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10
SPECIFICATIONS (ADSP-2104/ADSP-2109) . . . . . . . . 12
Recommended Operating Conditions . . . . . . . . . . . . . . . . 12
Electrical Characteristics . . . . . . . . . . . . . . . . . . . . . . . . . . 12
Supply Current & Power . . . . . . . . . . . . . . . . . . . . . . . . . . 13
Power Dissipation Example . . . . . . . . . . . . . . . . . . . . . . . . 14
Environmental Conditions . . . . . . . . . . . . . . . . . . . . . . . . . 14
Capacitive Loading . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14
Test Conditions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15
–2–
windowed user interface. A PROM splitter utility generates
PROM programmer compatible files.
EZ-ICE
systems by providing a full range of emulation functions such as
modification of memory and register values and execution
breakpoints. EZ-LAB
systems that execute EPROM-based programs.
The EZ-Kit Lite is a very low cost evaluation/development
platform that contains both the hardware and software needed
to evaluate the ADSP-21xx architecture.
Additional details and ordering information is available in the
ADSP-2100 Family Software & Hardware Development Tools data
sheet (ADDS-21xx-TOOLS). This data sheet can be requested
from any Analog Devices sales office or distributor.
Additional Information
This data sheet provides a general overview of ADSP-2104/
ADSP-2109 processor functionality. For detailed design
information on the architecture and instruction set, refer to the
ADSP-2100 Family User’s Manual, available from Analog
Devices.
EZ-ICE and EZ-LAB are registered trademarks of Analog Devices, Inc.
SPECIFICATIONS (ADSP-2104L/ADSP-2109L) . . . . . . 16
Recommended Operating Conditions . . . . . . . . . . . . . . . . 16
Electrical Characteristics . . . . . . . . . . . . . . . . . . . . . . . . . . 16
Supply Current & Power . . . . . . . . . . . . . . . . . . . . . . . . . . 17
Power Dissipation Example . . . . . . . . . . . . . . . . . . . . . . . . 18
Environmental Conditions . . . . . . . . . . . . . . . . . . . . . . . . . 18
Capacitive Loading . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18
Test Conditions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19
TIMING PARAMETERS (ADSP-2104/ADSP-2109) . . . . . 20
Clock Signals . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21
Interrupts & Flags . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 22
Bus Request–Bus Grant . . . . . . . . . . . . . . . . . . . . . . . . . . . 23
Memory Read . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 24
Memory Write . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 25
Serial Ports . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 26
TIMING PARAMETERS (ADSP-2104L/ADSP-2109L) . . 27
Clock Signals . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 28
Interrupts & Flags . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 29
Bus Request–Bus Grant . . . . . . . . . . . . . . . . . . . . . . . . . . . 30
Memory Read . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 31
Memory Write . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 32
Serial Ports . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 33
PIN CONFIGURATIONS
68-Lead PLCC . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 34
PACKAGE OUTLINE DIMENSIONS
68-Lead PLCC . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 35
ORDERING GUIDE . . . . . . . . . . . . . . . . . . . . . . . . . . . . 36
®
in-circuit emulators allow debugging of ADSP-2104
®
demonstration boards are complete DSP
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