ADSP-21062/ADSP-21062L
including a 2 Mbit SRAM memory (4 Mbit on the ADSP-21060),
host processor interface, DMA controller, serial ports and
link port and parallel bus connectivity for glueless DSP
multiprocessing.
Figure 1 shows a block diagram of the ADSP-21062, illustrating
the following architectural features:
S
GENERAL NOTE
This data sheet represents production released specifications for
the ADSP-21062 (5 V) and ADSP-21062L (3.3 V) processors,
for both 33 MHz and 40 MHz speed grades. The product name
“ADSP-21062” is used throughout this data sheet to represent
all devices, except where expressly noted.
Computation Units (ALU, Multiplier and Shifter) with a
Shared Data Register File
Data Address Generators (DAG1, DAG2)
Program Sequencer with Instruction Cache
Interval Timer
On-Chip SRAM
External Port for Interfacing to Off-Chip Memory and
Peripherals
Host Port and Multiprocessor Interface
DMA Controller
Serial Ports and Link Ports
JTAG Test Access Port
Figure 2 shows a typical single-processor system. A multi-
processing system is shown in Figure 3.
GENERAL DESCRIPTION
The ADSP-21062 SHARC—Super Harvard Architecture
Computer—is a signal processing microcomputer that offers new
capabilities and levels of performance. The ADSP-21062
SHARCs are 32-bit processors optimized for high performance
DSP applications. The ADSP-21062 builds on the ADSP-21000
DSP core to form a complete system-on-a-chip, adding a dual-
ported on-chip SRAM and integrated I/O peripherals supported
by a dedicated I/O bus.
Table I. ADSP-21062/ADSP-21062L Benchmarks (@ 40 MHz)
1024-Pt. Complex FFT
0.46 ms
18,221 cycles
(Radix 4, with Digit Reverse)
FIR Filter (per Tap)
IIR Filter (per Biquad)
Divide (y/x)
25 ns
1 cycle
4 cycles
6 cycles
9 cycles
100 ns
150 ns
Fabricated in a high speed, low power CMOS process, the
ADSP-21062 has a 25 ns instruction cycle time and operates
at 40 MIPS. With its on-chip instruction cache, the processor
can execute every instruction in a single cycle. Table I shows
performance benchmarks for the ADSP-21062.
Inverse Square Root (1/√x)
DMA Transfer Rate
225 ns
240 Mbytes/s
The ADSP-21062 SHARC represents a new standard of inte-
gration for signal computers, combining a high performance
floating-point DSP core with integrated, on-chip system features
REV. C
–3–
ADI [ ADI ]
