ADSP-BF531/ADSP-BF532/ADSP-BF533
GENERAL DESCRIPTION
The ADSP-BF531/ADSP-BF532/ADSP-BF533 processors are
members of the Blackfin® family of products, incorporating the
Analog Devices, Inc./Intel Micro Signal Architecture (MSA).
Blackfin processors combine a dual-MAC state-of-the-art signal
processing engine, the advantages of a clean, orthogonal RISC-
like microprocessor instruction set, and single instruction, mul-
tiple data (SIMD) multimedia capabilities into a single
instruction set architecture.
The ADSP-BF531/ADSP-BF532/ADSP-BF533 processors are
completely code and pin-compatible, differing only with respect
to their performance and on-chip memory. Specific perfor-
mance and memory configurations are shown in Table 1.
PORTABLE LOW POWER ARCHITECTURE
Blackfin processors provide world-class power management
and performance. Blackfin processors are designed in a low
power and low voltage design methodology and feature
dynamic power management—the ability to vary both the volt-
age and frequency of operation to significantly lower overall
power consumption. Varying the voltage and frequency can
result in a substantial reduction in power consumption, com-
pared with just varying the frequency of operation. This
translates into longer battery life for portable appliances.
SYSTEM INTEGRATION
The ADSP-BF531/ADSP-BF532/ADSP-BF533 processors are
highly integrated system-on-a-chip solutions for the next gener-
ation of digital communication and consumer multimedia
applications. By combining industry-standard interfaces with a
high performance signal processing core, users can develop
cost-effective solutions quickly without the need for costly
external components. The system peripherals include a UART
port, an SPI port, two serial ports (SPORTs), four general-pur-
pose timers (three with PWM capability), a real-time clock, a
watchdog timer, and a parallel peripheral interface.
Table 1. Processor Comparison
Features
SPORTs
2
2
2
UART
1
1
1
SPI
1
1
1
PROCESSOR PERIPHERALS
GP Timers
3
3
3
Watchdog Timers
1
1
1
The ADSP-BF531/ADSP-BF532/ADSP-BF533 processors con-
tain a rich set of peripherals connected to the core via several
high bandwidth buses, providing flexibility in system configura-
tion as well as excellent overall system performance (see the
functional block diagram in Figure 1 on Page 1). The general-
purpose peripherals include functions such as UART, timers
with PWM (pulse-width modulation) and pulse measurement
capability, general-purpose I/O pins, a real-time clock, and a
watchdog timer. This set of functions satisfies a wide variety of
typical system support needs and is augmented by the system
expansion capabilities of the part. In addition to these general-
purpose peripherals, the processors contain high speed serial
and parallel ports for interfacing to a variety of audio, video, and
modem codec functions; an interrupt controller for flexible
management of interrupts from the on-chip peripherals or
external sources; and power management control functions to
tailor the performance and power characteristics of the proces-
sor and system to many application scenarios.
RTC
1
1
1
Parallel Peripheral Interface
GPIOs
1
1
1
16
16
16
L1 Instruction SRAM/Cache 16K bytes 16K bytes 16K bytes
L1 Instruction SRAM
L1 Data SRAM/Cache
L1 Data SRAM
16K bytes 32K bytes 64K bytes
16K bytes 32K bytes 32K bytes
32K bytes
L1 Scratchpad
4K bytes 4K bytes 4K bytes
1K bytes 1K bytes 1K bytes
L3 Boot ROM
Maximum Speed Grade
400 MHz 400 MHz 600 MHz
Package Options:
CSP_BGA
Plastic BGA
LQFP
160-Ball 160-Ball 160-Ball
169-Ball 169-Ball 169-Ball
176-Lead 176-Lead 176-Lead
All of the peripherals, except for general-purpose I/O, real-time
clock, and timers, are supported by a flexible DMA structure.
There is also a separate memory DMA channel dedicated to
data transfers between the processor’s various memory spaces,
including external SDRAM and asynchronous memory. Multi-
ple on-chip buses running at up to 133 MHz provide enough
bandwidth to keep the processor core running along with activ-
ity on all of the on-chip and external peripherals.
By integrating a rich set of industry-leading system peripherals
and memory, Blackfin processors are the platform of choice for
next generation applications that require RISC-like program-
mability, multimedia support, and leading-edge signal
processing in one integrated package.
The processors include an on-chip voltage regulator in support
of the processor’s dynamic power management capability. The
voltage regulator provides a range of core voltage levels from
V
DDEXT. The voltage regulator can be bypassed at the user’s
discretion.
Rev. H
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Page 3 of 64
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January 2011
ROCHESTER [ Rochester Electronics ]
