ADSP-3PARCBF548M01 Analog Devices Inc, ADSP-3PARCBF548M01 Datasheet - Page 5

• Manufacturer Part Number: ADSP-3PARCBF548M01
• Description: MODULE BOARD BF548
• Manufacturer: Analog Devices Inc
• Series: Blackfin®r

Specifications of ADSP-3PARCBF548M01

• Module/board Type: Processor Module
• For Use With/related Products: ADSP-BF548
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

length, and base registers (for circular buffering), and eight
additional 32-bit pointer registers (for C-style indexed stack
manipulation).
Blackfin processors support a modified Harvard architecture in
combination with a hierarchical memory structure. Level 1 (L1)
memories are those that typically operate at the full processor
speed with little or no latency. At the L1 level, the instruction
memory holds instructions only. The two data memories hold
data, and a dedicated scratchpad data memory stores stack and
local variable information.
In addition, multiple L1 memory blocks are provided, offering a
configurable mix of SRAM and cache. The memory manage-
ment unit (MMU) provides memory protection for individual
tasks that may be operating on the core and can protect system
registers from unintended access.
DA0
SD
LD1
LD0
DA1
ADSP-BF542/ADSP-BF544/ADSP-BF547/ADSP-BF548/ADSP-BF549
32
32
32
32
32
R0.H
R7.H
R2.H
R1.H
R6.H
R5.H
R4.H
R3.H
RAB
32
R1.L
R0.L
R7.L
R6.L
R3.L
R2.L
I3
I2
R5.L
R4.L
I1
I0
32
L3
L2
L1
L0
32
SHIFTER
BARREL
B3
B2
B1
B0
8
Rev. C | Page 5 of 100 | February 2010
ADDRESS ARITHMETIC UNIT
32
Figure 2. Blackfin Processor Core
M3
M2
M1
M0
A0
DATA ARITHMETIC UNIT
16
40
32
DAG1
8
40
40
The architecture provides three modes of operation: user mode,
supervisor mode, and emulation mode. User mode has
restricted access to certain system resources, thus providing a
protected software environment, while supervisor mode has
unrestricted access to the system and core resources.
The Blackfin processor instruction set has been optimized so
that 16-bit opcodes represent the most frequently used instruc-
tions, resulting in excellent compiled code density. Complex
DSP instructions are encoded into 32-bit opcodes, representing
fully featured multifunction instructions. Blackfin processors
support a limited multi-issue capability, where a 32-bit instruc-
tion can be issued in parallel with two 16-bit instructions,
allowing the programmer to use many of the core resources in a
single instruction cycle.
The Blackfin processor assembly language uses an algebraic syn-
tax for ease of coding and readability. The architecture has been
optimized for use in conjunction with the C/C++ compiler,
resulting in fast and efficient software implementations.
8
DAG0
16
40
A1
ASTAT
P2
P1
P0
SP
P5
P4
P3
FP
8
32
PREG
LOOP BUFFER
SEQUENCER
DECODE
CONTROL
ALIGN
UNIT