Single-Cycle Multiply and ALU Operations in Parallel with
Dual Memory Read/Writes and Instruction Fetch
Multiply with Add and Subtract for Accelerated FFT
Butterfly Computation
2 Mbit On-Chip SRAM
Dual-Ported for Independent Access by Core Processor
and DMA
Off-Chip Memory Interfacing
4 Gigawords Addressable
Programmable Wait State Generation, Page-Mode
DRAM Support
DAG1
8 x 4 x 32
BUS
CONNECT
(PX)
MULTIPLIER
CORE PROCESSOR
TIMER
DAG2
8 x 4 x 24
REGISTER
16 x 40-BIT
DATA
DM ADDRESS BUS
FILE
SEQUENCER
PM DATA BUS
DM DATA BUS
BARREL
SHIFTER
DUAL-PORTED SRAM
INSTRUCTION
CACHE
32 x 48-BIT
PROGRAM
ADDRDATAADDR
24PM ADDRESS BUS
32
48
40/32
ALU
TWO INDEPENDENT
DUAL-PORTED BLOCKS
PROCESSOR PORTI/O PORT
ADDRDATA
DATA
IOP
REGISTERS
(MEMORY MAPPED)
CONTROL,
STATUS &
DATA BUFFERS
DATA
IOD
48
ADDR
CONTROLLER
SERIAL PORTS
I/O PROCESSOR
Figure 1. ADSP-21062/ADSP-21062L Block Diagram
BLOCK 0
BLOCK 1
IOA
17
DMA
(2)
LINK PORTS
(6)
JTAG
TEST &
EMULATION
EXTERNAL
PORT
ADDR BUS
MUX
MULTIPROCESSOR
INTERFACE
DATA BUS
MUX
HOST PORT
4
6
6
36
7
32
48
SHARC is a registered trademark of Analog Devices, Inc.
REV. B
Information furnished by Analog Devices is believed to be accurate and
reliable. However, no responsibility is assumed by Analog Devices for its
use, nor for any infringements of patents or other rights of third parties
which may result from its use. No license is granted by implication or
otherwise under any patent or patent rights of Analog Devices.
Figure 35. Typical Output Delay or Hold vs. Load Capacitance
(at Maximum Case Temperature) (V
= 3.3 V) . . . . . . . 43
DD
–2–
REV. B
Page 3
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.
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 dualported on-chip SRAM and integrated I/O peripherals supported
by a dedicated I/O bus.
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.
The ADSP-21062 SHARC
gration for signal computers, combining a high performance
floating-point DSP core with integrated, on-chip system features
represents a new standard of inte-
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:
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 multiprocessing system is shown in Figure 3.
Table I. ADSP-21062/ADSP-21062L Benchmarks (@ 40 MHz)
1024-Pt. Complex FFT0.46 ms18,221 cycles
(Radix 4, with Digit Reverse)
FIR Filter (per Tap)25 ns1 cycle
IIR Filter (per Biquad)100 ns4 cycles
Divide (y/x)150 ns6 cycles
Inverse Square Root (1/√x)225 ns9 cycles
DMA Transfer Rate240 Mbytes/s
REV. B
–3–
Page 4
ADSP-21062/ADSP-21062L
ADSP-21000 FAMILY CORE ARCHITECTURE
The ADSP-21062 includes the following architectural features
of the ADSP-21000 family core. The ADSP-21062 processors
are code- and function-compatible with the ADSP-21020.
Independent, Parallel Computation Units
The arithmetic/logic unit (ALU), multiplier and shifter all perform single-cycle instructions. The three units are arranged in
parallel, maximizing computational throughput. Single multifunction instructions execute parallel ALU and multiplier operations. These computation units support IEEE 32-bit singleprecision floating-point, extended precision 40-bit floatingpoint, and 32-bit fixed-point data formats.
ADSP-2106x
3-0
BMS
ADDR
31-0
DATA
47-0
RD
WR
ACK
MS
PAGE
SBTS
SW
ADRCLK
DMAR1-2
DMAG1-2
HBR
HBG
REDY
BR
CPA
JTAG
7
CS
CS
ADDR
ADDRESS
CONTROL
3-0
1-6
DATA
DATA
ADDR
DATA
OE
WE
CS
DATA
(OPTIONAL)
PERIPHERALS
(OPTIONAL)
ACK
DMA DEVICE
(OPTIONAL)
HOST
PROCESSOR
INTERFACE
(OPTIONAL)
ADDR
DATA
BOOT
EPROM
MEMORY
AND
1x CLOCK
3
LINK
DEVICES
(6 MAXIMUM)
(OPTIONAL)
SERIAL
DEVICE
(OPTIONAL)
SERIAL
DEVICE
(OPTIONAL)
CLKIN
EBOOT
LBOOT
IRQ
4
2-0
FLAG
TIMEXP
LxCLK
LxACK
LxDAT
TCLK0
RCLK0
TFS0
RSF0
DT0
DR0
TCLK1
RCLK1
TFS1
RFS1
DT1
DR1
RPBA
ID
2-0
RESET
3-0
Figure 2. ADSP-21062 System
Data Register File
A general purpose data register file is used for transferring data
between the computation units and the data buses, and for
storing intermediate results. This 10-port, 32-register (16 primary, 16 secondary) register file, combined with the ADSP21000 Harvard architecture, allows unconstrained data flow
between computation units and internal memory.
Single-Cycle Fetch of Instruction and Two Operands
The ADSP-21062 features an enhanced Harvard architecture in
which the data memory (DM) bus transfers data and the program memory (PM) bus transfers both instructions and data
(see Figure 1). With its separate program and data memory
buses and on-chip instruction cache, the processor can simultaneously fetch two operands and an instruction (from the cache),
all in a single cycle.
Instruction Cache
The ADSP-21062 includes an on-chip instruction cache that
enables three-bus operation for fetching an instruction and two
data values. The cache is selective—only the instructions whose
fetches conflict with PM bus data accesses are cached. This
allows full-speed execution of core, looped operations such as
digital filter multiply-accumulates and FFT butterfly processing.
Data Address Generators with Hardware Circular Buffers
The ADSP-21062’s two data address generators (DAGs) implement circular data buffers in hardware. Circular buffers allow
efficient programming of delay lines and other data structures
required in digital signal processing, and are commonly used in
digital filters and Fourier transforms. The two DAGs of the
ADSP-21062 contain sufficient registers to allow the creation of
up to 32 circular buffers (16 primary register sets, 16 secondary).
The DAGs automatically handle address pointer wraparound,
reducing overhead, increasing performance and simplifying
implementation. Circular buffers can start and end at any
memory location.
Flexible Instruction Set
The 48-bit instruction word accommodates a variety of parallel
operations, for concise programming. For example, the ADSP21062 can conditionally execute a multiply, an add, a subtract
and a branch, all in a single instruction.
ADSP-21062/ADSP-21062L FEATURES
Augmenting the ADSP-21000 family core, the ADSP-21062
adds the following architectural features:
Dual-Ported On-Chip Memory
The ADSP-21062 contains two megabits of on-chip SRAM,
organized as two blocks of 1 Mbits each, which can be configured for different combinations of code and data storage. Each
memory block is dual-ported for single-cycle, independent accesses by the core processor and I/O processor or DMA controller. The dual-ported memory and separate on-chip buses allow
two data transfers from the core and one from I/O, all in a single
cycle.
On the ADSP-21062, the memory can be configured as a maximum of 64K words of 32-bit data, 128K words of 16-bit data,
40K words of 48-bit instructions (or 40-bit data), or combinations of different word sizes up to two megabits. All of the
memory can be accessed as 16-bit, 32-bit or 48-bit words.
A 16-bit floating-point storage format is supported, which effectively doubles the amount of data that may be stored on-chip.
Conversion between the 32-bit floating-point and 16-bit floatingpoint formats is done in a single instruction.
While each memory block can store combinations of code and
data, accesses are most efficient when one block stores data,
using the DM bus for transfers, and the other block stores
instructions and data, using the PM bus for transfers. Using the
DM bus and PM bus in this way, with one dedicated to each
memory block, assures single-cycle execution with two data
transfers. In this case, the instruction must be available in the
cache. Single-cycle execution is also maintained when one of the
data operands is transferred to or from off-chip, via the ADSP21062’s external port.
–4–
REV. B
Page 5
ADSP-21062/ADSP-21062L
Off-Chip Memory and Peripherals Interface
The ADSP-21062’s external port provides the processor’s interface to off-chip memory and peripherals. The 4-gigaword offchip address space is included in the ADSP-21062’s unified
address space. The separate on-chip buses—for PM addresses,
PM data, DM addresses, DM data, I/O addresses and I/O
data—are multiplexed at the external port to create an external
system bus with a single 32-bit address bus and a single 48-bit
(or 32-bit) data bus.
Addressing of external memory devices is facilitated by on-chip
decoding of high-order address lines to generate memory bank
select signals. Separate control lines are also generated for simplified addressing of page-mode DRAM. The ADSP-21062
provides programmable memory wait states and external
memory acknowledge controls to allow interfacing to DRAM
and peripherals with variable access, hold and disable time
requirements.
Host Processor Interface
The ADSP-21062’s host interface allows easy connection to
standard microprocessor buses, both 16-bit and 32-bit, with
little additional hardware required. Asynchronous transfers at
speeds up to the full clock rate of the processor are supported.
The host interface is accessed through the ADSP-21062’s external port and is memory-mapped into the unified address space.
Four channels of DMA are available for the host interface; code
and data transfers are accomplished with low software overhead.
The host processor requests the ADSP-21062’s external bus
with the host bus request (HBR), host bus grant (HBG), and
ready (REDY) signals. The host can directly read and write the
internal memory of the ADSP-21062, and can access the DMA
channel setup and mailbox registers. Vector interrupt support is
provided for efficient execution of host commands.
DMA Controller
The ADSP-21062’s on-chip DMA controller allows zerooverhead data transfers without processor intervention. The
DMA controller operates independently and invisibly to the
processor core, allowing DMA operations to occur while the
core is simultaneously executing its program instructions.
DMA transfers can occur between the ADSP-21062’s internal
memory and either external memory, external peripherals or a
host processor. DMA transfers can also occur between the
ADSP-21062’s internal memory and its serial ports or link
ports. DMA transfers between external memory and external
peripheral devices are another option. External bus packing to
16-, 32-, or 48-bit words is performed during DMA transfers.
Ten channels of DMA are available on the ADSP-21062—two
via the link ports, four via the serial ports, and four via the
processor’s external port (for either host processor, other
ADSP-21062s, memory or I/O transfers). Four additional
link port DMA channels are shared with serial port 1 and the
external port. Programs can be downloaded to the ADSP21062 using DMA transfers. Asynchronous off-chip peripherals can control two DMA channels using DMA Request/
Grant lines (DMAR1-2, DMAG1-2). Other DMA features
include interrupt generation upon completion of DMA transfers and DMA chaining for automatic linked DMA transfers.
Serial Ports
The ADSP-21062 features two synchronous serial ports that
provide an inexpensive interface to a wide variety of digital and
mixed-signal peripheral devices. The serial ports can operate at
the full clock rate of the processor, providing each with a maximum data rate of 40 Mbit/s. Independent transmit and receive
functions provide greater flexibility for serial communications.
Serial port data can be automatically transferred to and from
on-chip memory via DMA. Each of the serial ports offers TDM
multichannel mode.
The serial ports can operate with little-endian or big-endian
transmission formats, with word lengths selectable from 3 bits to
32 bits. They offer selectable synchronization and transmit
modes as well as optional µ-law or A-law companding. Serial
port clocks and frame syncs can be internally or externally
generated.
Multiprocessing
The ADSP-21062 offers powerful features tailored to multiprocessor DSP systems. The unified address space (see
Figure 4) allows direct interprocessor accesses of each ADSP21062’s internal memory. Distributed bus arbitration logic is
included on-chip for simple, glueless connection of systems
containing up to six ADSP-21062s and a host processor. Master
processor changeover incurs only one cycle of overhead. Bus
arbitration is selectable as either fixed or rotating priority. Bus lock
allows indivisible read-modify-write sequences for semaphores. A
vector interrupt is provided for interprocessor commands. Maximum throughput for interprocessor data transfer is 240 Mbytes/s
over the link ports or external port. Broadcast writes allow simultaneous transmission of data to all ADSP-21062s and can be used
to implement reflective semaphores.
Link Ports
The ADSP-21062 features six 4-bit link ports that provide additional I/O capabilities. The link ports can be clocked twice per
cycle, allowing each to transfer eight bits of data per cycle. Link
port I/O is especially useful for point-to-point interprocessor
communication in multiprocessing systems.
The link ports can operate independently and simultaneously,
with a maximum data throughput of 240 Mbytes/s. Link port
data is packed into 32- or 48-bit words, and can be directly read
by the core processor or DMA-transferred to on-chip memory.
Each link port has its own double-buffered input and output
registers. Clock/acknowledge handshaking controls link port
transfers. Transfers are programmable as either transmit or
receive.
Program Booting
The internal memory of the ADSP-21062 can be booted at
system power-up from either an 8-bit EPROM, a host processor, or through one of the link ports. Selection of the boot
source is controlled by the BMS (Boot Memory Select),
EBOOT (EPROM Boot), and LBOOT (Link/Host Boot) pins.
32-bit and 16-bit host processors can be used for booting.
REV. B
–5–
Page 6
ADSP-21062/ADSP-21062L
ADSP-2106x #6
ADSP-2106x #5
ADSP-2106x #4
011
010
ADSP-2106x #3
CLKIN
RESET
RPBA
3
ID
2-0
CONTROL
ADSP-2106x #2
CLKIN
RESET
RPBA
3
ID
2-0
CONTROL
ADDR
DATA
BR
1-2
ADDR
DATA
BR1, BR
, BR
31-0
47-0
CPA
BR
31-0
47-0
CPA
BR
CONTROL
5
4-6
3
5
3-6
2
DATA
ADDRESS
1x
CLOCK
ADSP-2106x #1
DATA
ADDRESS
ADDR
DATA
OE
WE
ACK
CS
CS
ADDR
DATA
ADDR
DATA
001
3
CLKIN
RESETRESET
RPBA
ID
2-0
CONTROL
ADDR
DATA
ACK
MS
BMS
PAGE
SBTS
ADRCLK
HBR
HBG
REDY
CPA
BR
BR
31-0
47-0
RD
WR
3-0
SW
CS
2-6
CONTROL
5
1
Figure 3. Shared Memory Multiprocessing System
GLOBAL
MEMORY
AND
PERIPHERALS
(OPTIONAL)
BOOT
EPROM
(OPTIONAL)
HOST
PROCESSOR
INTERFACE
(OPTIONAL)
–6–
REV. B
Page 7
ADSP-21062/ADSP-21062L
INTERNAL
MEMORY
SPACE
MULTIPROCESSOR
MEMORY SPACE
NORMAL WORD ADDRESSING: 32-BIT DATA WORDS
48-BIT INSTRUCTION WORDS
SHORT WORD ADDRESSING: 16-BIT DATA WORDS
IOP REGISTERS
NORMAL WORD ADDRESSING
SHORT WORD ADDRESSING
INTERNAL MEMORY SPACE
OF ADSP-2106x
WITH ID=001
INTERNAL MEMORY SPACE
OF ADSP-2106x
WITH ID=010
INTERNAL MEMORY SPACE
OF ADSP-2106x
WITH ID=011
INTERNAL MEMORY SPACE
OF ADSP-2106x
WITH ID=100
INTERNAL MEMORY SPACE
OF ADSP-2106x
WITH ID=101
INTERNAL MEMORY SPACE
OF ADSP-2106x
WITH ID=110
BROADCAST WRITE
TO ALL
ADSP-2106xs
0x0000 0000
0x0002 0000
0x0004 0000
0x0008 0000
0x0010 0000
0x0018 0000
0x0020 0000
0x0028 0000
0x0030 0000
0x0038 0000
0x003F FFFF
EXTERNAL
MEMORY
SPACE
BANK 0
DRAM
(OPTIONAL)
BANK 1
BANK 2
BANK 3
NONBANKED
0x0040 0000
MS
0
MS
1
MS
2
MS
3
BANK SIZE IS
SELECTED BY
MSIZE BIT FIELD OF
SYSCON
REGISTER.
0xFFFF FFFF
Figure 4. ADSP-21062/ADSP-21062L Memory Map
DEVELOPMENT TOOLS
The ADSP-21062 is supported with a complete set of software
and hardware development tools, including an EZ-ICE
Circuit Emulator, EZ-LAB
®
development board, EZ-KIT, and
In-
development software. The EZ-LAB contains an evaluation board
with an ADSP-21062 (5 V) processor and provides a serial connection to your PC. The SHARC
21000 Family Development Software for the PC and the
EZ-LAB
ADSP-21062’s Development Board in one package.
EZ-KIT combines the ADSP-
The EZ-KIT contains in addition to the EZ-LAB development
board, an optimizing compiler, assembler, instruction level simulator, run-time libraries, diagnostic utilities and a complete set
of example programs.
The same EZ-ICE hardware can be used for the ADSP-21060/
ADSP-21061, to fully emulate the ADSP-21062, with the exception of displaying and modifying the two new SPORTS registers.
The emulator will not display these two registers, but your
code can use them.
Analog Devices’ ADSP-21000 Family Development Software
includes an easy to use Assembler based on an algebraic syntax,
an Assembly Library/Librarian, a Linker, an Instruction-level
Simulator, an ANSI C optimizing Compiler, the CBug™ C
Source-Level Debugger, and a C Runtime Library including
DSP and mathematical functions. The Optimizing Compiler
includes Numerical C extensions based on the work of the
ANSI Numerical C Extensions Group. Numerical C provides
extensions to the C language for array selection, vector math
operations, complex data types, circular pointers, and variably
CBug and SHARCPAC are trademarks of Analog Devices, Inc.
EZ-LAB is a registered trademark of Analog Devices, Inc.
dimensioned arrays. The ADSP-21000 Family Development
Software is available for both the PC and Sun platforms.
The ADSP-21062 EZ-ICE
Emulator uses the IEEE 1149.1
JTAG test access port of the ADSP-21062 processor to monitor
and control the target board processor during emulation. The
EZ-ICE
provides full-speed emulation, allowing inspection and
modification of memory, registers, and processor stacks. Nonintrusive in-circuit emulation is assured by the use of the processor’s
JTAG interface—the emulator does not affect target system
loading or timing.
Further details and ordering information are available in the
ADSP-21000 Family Hardware & Software Development Tools
data sheet (ADDS-210xx-TOOLS). This data sheet can be
requested from any Analog Devices sales office, distributor or
the Literature Center.
In addition to the software and hardware development tools
available from Analog Devices, third parties provide a wide
range of tools supporting the SHARC processor family. Hardware tools include SHARC
SHARC
SHARCs and additional memory. These modules are based on
the SHARCPAC™
VME boards, and daughter card modules with multiple
PC plug-in cards, multiprocessor
module specification. Third party software
tools include an Ada compiler, DSP libraries, operating systems,
and block diagram design tools.
ADDITIONAL INFORMATION
This data sheet provides a general overview of the ADSP-21062
architecture and functionality. For detailed information on the
ADSP-21000 Family core architecture and instruction set, refer
to the ADSP-21062 SHARC
User’s Manual, Second Edition.
REV. B
–7–
Page 8
ADSP-21062/ADSP-21062L
PIN FUNCTION DESCRIPTIONS
ADSP-21062 pin definitions are listed below. All pins are identical on the ADSP-21062 and ADSP-21062L. Inputs identified
as synchronous (S) must meet timing requirements with respect
to CLKIN (or with respect to TCK for TMS, TDI). Inputs
identified as asynchronous (A) can be asserted asynchronously
to CLKIN (or to TCK for TRST).
Unused inputs should be tied or pulled to VDD or GND,
except for ADDR
, DATA
31-0
, FLAG
47-0
, SW, and inputs that
3-0
DRx, TCLKx, RCLKx, LxDAT3-0, LxCLK, LxACK, TMS
and TDI)—these pins can be left floating. These pins have a
logic-level hold circuit that prevents the input from floating
internally.
A = AsynchronousG = GroundI = Input
O = OutputP = Power SupplyS = Synchronous
(A/D) = Active Drive(O/D) = Open Drain
T = Three-State (when SBTS is asserted, or when the
ADSP-21062 is a bus slave)
have internal pull-up or pull-down resistors (CPA, ACK, DTx,
PinTypeFunction
ADDR
31-0
I/O/TExternal Bus Address. The ADSP-21062 outputs addresses for external memory and peripherals on
these pins. In a multiprocessor system the bus master outputs addresses for read/writes of the internal
memory or IOP registers of other ADSP-21062s. The ADSP-21062 inputs addresses when a host
processor or multiprocessing bus master is reading or writing its internal memory or IOP registers.
DATA
47-0
I/O/TExternal Bus Data. The ADSP-21062 inputs and outputs data and instructions on these pins. 32-bit
single-precision floating-point data and 32-bit fixed-point data is transferred over bits 47–16 of the
bus. 40-bit extended-precision floating-point data is transferred over bits 47–8 of the bus. 16-bit short
word data is transferred over bits 31–16 of the bus. In PROM boot mode, 8-bit data is transferred over
bits 23–16. Pull-up resistors on unused DATA pins are not necessary.
MS
3-0
O/TMemory Select Lines. These lines are asserted (low) as chip selects for the corresponding banks of
external memory. Memory bank size must be defined in the ADSP-21062’s system control register
(SYSCON). The MS
other address lines. When no external memory access is occurring the MS
lines are decoded memory address lines that change at the same time as the
3-0
lines are inactive; they are
3-0
active however when a conditional memory access instruction is executed, whether or not the condition is true. MS
In a multiprocessing system the MS
can be used with the PAGE signal to implement a bank of DRAM memory (Bank 0).
0
lines are output by the bus master.
3-0
RDI/O/TMemory Read Strobe. This pin is asserted (low) when the ADSP-21062 reads from external
memory devices or from the internal memory of other ADSP-21062s. External devices (including
other ADSP-21062s) must assert RD to read from the ADSP-21062’s internal memory. In a multiprocessing system RD is output by the bus master and is input by all other ADSP-21062s.
WRI/O/TMemory Write Strobe. This pin is asserted (low) when the ADSP-21062 writes to external memory
devices or to the internal memory of other ADSP-21062s. External devices must assert WR to write to
the ADSP-21062’s internal memory. In a multiprocessing system WR is output by the bus master and
is input by all other ADSP-21062s.
PAGEO/TDRAM Page Boundary. The ADSP-21062 asserts this pin to signal that an external DRAM page
boundary has been crossed. DRAM page size must be defined in the ADSP-21062’s memory control
register (WAIT). DRAM can only be implemented in external memory Bank 0; the PAGE signal can
only be activated for Bank 0 accesses. In a multiprocessing system PAGE is output by the bus master.
ADRCLKO/TClock Output Reference. In a multiprocessing system ADRCLK is output by the bus master.
SWI/O/TSynchronous Write Select. This signal is used to interface the ADSP-21062 to synchronous
memory devices (including other ADSP-21062s). The ADSP-21062 asserts SW (low) to provide an
early indication of an impending write cycle, which can be aborted if WR is not later asserted (e.g., in
a conditional write instruction). In a multiprocessing system, SW is output by the bus master and is
input by all other ADSP-21062s to determine if the multiprocessor memory access is a read or write.
SW is asserted at the same time as the address output. A host processor using synchronous writes
must assert this pin when writing to the ADSP-21062(s).
ACKI/O/SMemory Acknowledge. External devices can deassert ACK (low) to add wait states to an external
memory access. ACK is used by I/O devices, memory controllers, or other peripherals to hold off
completion of an external memory access. The ADSP-21062 deasserts ACK as an output to add wait
states to a synchronous access of its internal memory. In a multiprocessing system, a slave ADSP21062 deasserts the bus master’s ACK input to add wait state(s) to an access of its internal memory.
The bus master has a keeper latch on its ACK pin that maintains the input at the level to which it
was last driven.
–8–
REV. B
Page 9
ADSP-21062/ADSP-21062L
PinTypeFunction
SBTSI/SSuspend Bus Three-State. External devices can assert SBTS (low) to place the external bus address,
data, selects and strobes in a high impedance state for the following cycle. If the ADSP-21062
attempts to access external memory while SBTS is asserted, the processor will halt and the memory
access will not be completed until SBTS is deasserted. SBTS should only be used to recover from host
processor/ADSP-21062 deadlock, or used with a DRAM controller.
IRQ
2-0
FLAG
3-0
I/AInterrupt Request Lines. May be either edge-triggered or level-sensitive.
I/O/AFlag Pins. Each is configured via control bits as either an input or output. As an input, they can be
tested as a condition. As an output, they can be used to signal external peripherals.
TIMEXPOTimer Expired. Asserted for four cycles when the timer is enabled and TCOUNT decrements to
zero.
HBRI/AHost Bus Request. This pin must be asserted by a host processor to request control of the
ADSP-21062’s external bus. When HBR is asserted in a multiprocessing system, the ADSP-21062
that is bus master will relinquish the bus and assert HBG. To relinquish the bus, the ADSP-21062
places the address, data, select and strobe lines in a high impedance state. HBR has priority over all
ADSP-21062 bus requests (BR
) in a multiprocessing system.
6-1
HBGI/OHost Bus Grant. Acknowledges an HBR bus request, indicating that the host processor may take
control of the external bus. HBG is asserted (held low) by the ADSP-21062 until HBR is released. In
a multiprocessing system, HBG is output by the ADSP-21062 bus master and is monitored by all others.
CSI/AChip Select. Asserted by host processor to select the ADSP-21062.
REDY (O/D) OHost Bus Acknowledge. The ADSP-21062 deasserts REDY (low) to add wait states to an asynchro-
nous access of its internal memory or IOP registers by a host. This pin is an open drain output (O/D)
by default; it can be programmed in the ADREDY bit of the SYSCON register to be active drive
(A/D). REDY will only be output if the CS and HBR inputs are asserted.
DMAR1I/ADMA Request 1 (DMA Channel 7).
DMAR2I/ADMA Request 2 (DMA Channel 8).
DMAG1O/TDMA Grant 1 (DMA Channel 7).
DMAG2O/TDMA Grant 2 (DMA Channel 8).
BR
6-1
I/O/SMultiprocessing Bus Requests. Used by multiprocessing ADSP-21062s to arbitrate for bus master-
ship. An ADSP-21062 only drives its own BRx line (corresponding to the value of its ID
inputs) and
2-0
monitors all others. In a multiprocessor system with less than six ADSP-21062s, the unused BRx pins
should be pulled high; the processor’s own BRx line must not be pulled high or low because it is an
output.
ID
2-0
IMultiprocessing ID. Determines which multiprocessing bus request (BR1 – BR6) is used by ADSP-
21062. ID = 001 corresponds to BR1, ID = 010 corresponds to BR2, etc. ID = 000 in single-processor
systems. These lines are a system configuration selection which should be hardwired or changed at
reset only.
RPBAI/SRotating Priority Bus Arbitration Select. When RPBA is high, rotating priority for multiprocessor
bus arbitration is selected. When RPBA is low, fixed priority is selected. This signal is a system configuration selection which must be set to the same value on every ADSP-21062. If the value of RPBA is
changed during system operation, it must be changed in the same CLKIN cycle on every ADSP-21062.
CPA (O/D)I/OCore Priority Access. Asserting its CPA pin allows the core processor of an ADSP-21062 bus slave
to interrupt background DMA transfers and gain access to the external bus. CPA is an open drain
output that is connected to all ADSP-21062s in the system. The CPA pin has an internal 5 kΩ pull-up
resistor. If core access priority is not required in a system, the CPA pin should be left unconnected.
DTxOData Transmit (Serial Ports 0, 1). Each DT pin has a 50 kΩ internal pull-up resistor.
DRxIData Receive (Serial Ports 0, 1). Each DR pin has a 50 kΩ internal pull-up resistor.
TCLKxI/OTransmit Clock (Serial Ports 0, 1). Each TCLK pin has a 50 kΩ internal pull-up resistor.
RCLKxI/OReceive Clock (Serial Ports 0, 1). Each RCLK pin has a 50 kΩ internal pull-up resistor.
REV. B
–9–
Page 10
ADSP-21062/ADSP-21062L
PinTypeFunction
TFSxI/OTransmit Frame Sync (Serial Ports 0, 1).
RFSxI/OReceive Frame Sync (Serial Ports 0, 1).
LxDAT
LxCLKI/OLink Port Clock (Link Ports 0–5). Each LxCLK pin has a 50 kΩ internal pull-down resistor that is
LxACKI/OLink Port Acknowledge (Link Ports 0–5). Each LxACK pin has a 50 kΩ internal pull-down resistor
EBOOTIEPROM Boot Select. When EBOOT is high, the ADSP-21062 is configured for booting from an 8-
LBOOTILink Boot. When LBOOT is high, the ADSP-21062 is configured for link port booting. When
BMSI/O/T*Boot Memory Select. Output: Used as chip select for boot EPROM devices (when EBOOT = 1,
I/OLink Port Data (Link Ports 0–5). Each LxDAT pin has a 50 kΩ internal pull-down resistor that is
3-0
enabled or disabled by the LPDRD bit of the LCOM register.
enabled or disabled by the LPDRD bit of the LCOM register.
that is enabled or disabled by the LPDRD bit of the LCOM register.
bit EPROM. When EBOOT is low, the LBOOT and BMS inputs determine booting mode. See table
below. This signal is a system configuration selection that should be hardwired.
LBOOT is low, the ADSP-21062 is configured for host processor booting or no booting. See table
below. This signal is a system configuration selection that should be hardwired.
LBOOT = 0). In a multiprocessor system, BMS is output by the bus master. Input: When low, indi-
cates that no booting will occur and that ADSP-21062 will begin executing instructions from external
memory. See table below. This input is a system configuration selection that should be hardwired.
*Three-statable only in EPROM boot mode (when BMS is an output).
EBOOTLBOOTBMSBooting Mode
10OutputEPROM (Connect BMS to EPROM chip select.)
001 (Input)Host Processor
011 (Input)Link Port
000 (Input)No Booting. Processor executes from external memory.
010 (Input)Reserved
11x (Input)Reserved
CLKINIClock In. External clock input to the ADSP-21062. The instruction cycle rate is equal to CLKIN.
CLKIN may not be halted, changed, or operated below the minimum specified frequency.
RESETI/AProcessor Reset. Resets the ADSP-21062 to a known state and begins program execution at the
program memory location specified by the hardware reset vector address. This input must be asserted
(low) at power-up.
TCKITest Clock (JTAG). Provides an asynchronous clock for JTAG boundary scan.
TMSI/STest Mode Select (JTAG). Used to control the test state machine. TMS has a 20 kΩ internal pull-up
resistor.
TDII/STest Data Input (JTAG). Provides serial data for the boundary scan logic. TDI has a 20 kΩ internal
pull-up resistor.
TDOOTest Data Output (JTAG). Serial scan output of the boundary scan path.
TRSTI/ATest Reset (JTAG). Resets the test state machine. TRST must be asserted (pulsed low) after power-
up or held low for proper operation of the ADSP-21062. TRST has a 20 kΩ internal pull-up resistor.
EMUOEmulation Status. Must be connected to the ADSP-21062 EZ-ICE
ICSAOReserved, leave unconnected.
VDDPPower Supply; nominally +5.0 V dc for 5 V devices or +3.3 V dc for 3.3 V devices. (30 pins)
GNDGPower Supply Return. (30 pins)
NCDo Not Connect. Reserved pins which must be left open and unconnected.
target board connector only.
–10–
REV. B
Page 11
ADSP-21062/ADSP-21062L
TARGET BOARD CONNECTOR FOR EZ-ICE PROBE
The ADSP-2106x EZ-ICE Emulator uses the IEEE 1149.1
JTAG test access port of the ADSP-2106x to monitor and
control the target board processor during emulation. The EZICE probe requires the ADSP-2106x’s CLKIN, TMS, TCK,
TRST, TDI, TDO, EMU, and GND signals be made acces-
sible on the target system via a 14-pin connector (a 2 row × 7
pin strip header) such as that shown in Figure 5. The EZ-ICE
probe plugs directly onto this connector for chip-on-board
emulation. You must add this connector to your target board
design if you intend to use the ADSP-2106x EZ-ICE. The total
trace length between the EZ-ICE connector and the furthest
device sharing the EZ-ICE JTAG pin should be limited to 15
inches maximum for guaranteed operation. This length restriction must include EZ-ICE JTAG signals that are routed to one
or more ADSP-2106x devices, or a combination of ADSP2106x devices and other JTAG devices on the chain.
GND
KEY (NO PIN)
BTMS
BTCK
BTRST
BTDI
GND
12
34
56
78
910
9
1112
1314
EMU
CLKIN (OPTIONAL)
TMS
TCK
TRST
TDI
TDO
The 14-pin, 2-row pin strip header is keyed at the Pin 3 location —
Pin 3 must be removed from the header. The pins must be
0.025 inch square and at least 0.20 inch in length. Pin spacing
should be 0.1 × 0.1 inches. Pin strip headers are available from
vendors such as 3M, McKenzie, and Samtec.
The BTMS, BTCK, BTRST, and BTDI signals are provided so
that the test access port can also be used for board-level testing.
When the connector is not being used for emulation, place
jumpers between the BXXX pins and the XXX pins as shown in
Figure 5. If you are not going to use the test access port for
board testing, tie BTRST to GND and tie or pull up BTCK to
VDD. The TRST pin must be asserted after power-up (through
BTRST on the connector) or held low for proper operation of
the ADSP-2106x. None of the BXXX pins (Pins 5, 7, 9, 11) are
connected on the EZ-ICE probe.
The JTAG signals are terminated on the EZ-ICE probe as follows:
SignalTermination
TMSDriven through 22␣ Ω Resistor (16 mA Driver)
TCKDriven at 10 MHz through 22␣ Ω Resistor (16 mA
Driver)
TRST* Active Low Driven through 22␣ Ω Resistor (16 mA
EMUActive Low 4.7 kΩ Pull-Up Resistor, One TTL Load
(Open-Drain Output from the DSP)
*TRST is driven low until the EZ-ICE probe is turned on by the emulator at
software start-up. After software start-up, TRST is driven high.
TOP VIEW
Figure 5. Target Board Connector For ADSP-2106x
EZ-ICE Emulator (Jumpers in Place)
TDI
TDI
EZ-ICE
JTAG
CONNECTOR
OTHER
JTAG
CONTROLLER
TCK
TMS
EMU
TRST
TDO
CLKIN
OPTIONAL
Figure 6. JTAG Scan Path Connections for Multiple ADSP-2106x Systems
ADSP-2106x
#1
TCK
TMS
EMU
EMU
TDO
TRST
TRST
JTAG
DEVICE
(OPTIONAL)
TDI
TCK
ADSP-2106x
TDOTDO
TMS
TRST
TDI
TCK
n
TMS
EMU
EMU
TRST
TRST
REV. B
–11–
Page 12
ADSP-21062/ADSP-21062L
Figure 6 shows JTAG scan path connections for systems that
contain multiple ADSP-2106x processors.
Connecting CLKIN to Pin 4 of the EZ-ICE header is optional.
The emulator only uses CLKIN when directed to perform
operations such as starting, stopping, and single-stepping multiple ADSP-2106xs in a synchronous manner. If you do not need
these operations to occur synchronously on the multiple processors, simply tie Pin 4 of the EZ-ICE header to ground.
If synchronous multiprocessor operations are needed and
CLKIN is connected, clock skew between the multiple ADSP21062 processors and the CLKIN pin on the EZ-ICE header
must be minimal. If the skew is too large, synchronous operations
may be off by one or more cycles between processors. For synchronous multiprocessor operation TCK, TMS, CLKIN and
TDITDOTDITDO
5kV
*
TDITDO
TDITDO
EMU should be treated as critical signals in terms of skew,
and should be laid out as short as possible on your board. If
TCK, TMS, and CLKIN are driving a large number of ADSP21062s (more than eight) in your system, then treat them as a
“clock tree” using multiple drivers to minimize skew. (See
Figure 7 “JTAG Clock Tree” and “Clock Distribution” in the
“High Frequency Design Considerations” section of the ADSP-2106x User’s Manual, Second Edition.)
If synchronous multiprocessor operations are not needed (i.e.,
CLKIN is not connected), just use appropriate parallel termination on TCK and TMS. TDI, TDO, EMU and TRST are
not critical signals in terms of skew.
For complete information on the SHARC EZ-ICE, see the
ADSP-21000 Family JTAG EZ-ICE User's Guide and Reference.
TDITDO
TDITDO
TDI
EMU
TCK
TMS
TRST
TDO
CLKIN
5kV
*
*OPEN DRAIN DRIVER OR EQUIVALENT, i.e.,
EMU
Figure 7. JTAG Clocktree for Multiple ADSP-2106x Systems
SYSTEM
CLKIN
–12–
REV. B
Page 13
ADSP-21062/ADSP-21062L
ADSP-21062–SPECIFICATIONS
RECOMMENDED OPERATING CONDITIONS (5 V)
A Grade C Grade K Grade
ParameterTest ConditionsMinMaxMinMaxMinMaxUnits
V
T
V
V
V
NOTES
1
2
ELECTRICAL CHARACTERISTICS (5 V)
ParameterTest ConditionsMinMaxUnits
V
V
I
IH
I
IL
I
ILP
I
OZH
I
OZL
I
OZHP
I
OZLC
I
OZLA
I
OZLAR
I
OZLS
C
NOTES
11
12
13
14
15
16
17
18
19
10
11
12
Specifications subject to change without notice.
Supply Voltage4.755.254.755.254.755.25V
DD
Case Operating Temperature–40+85–40+1000+85°C
CASE
High Level Input Voltage
IH1
High Level Input Voltage
IH2
Low Level Input Voltage
IL
Applies to input and bidirectional pins: DATA
CPA, TFS0, TFS1, RFS0, RFS1, LxDAT
Applies to input pins: CLKIN, RESET, TRST.
OH
OL
High Level Output Voltage
Low Level Output Voltage
High Level Input Current
Low Level Input Current
Low Level Input Current
Three-State Leakage Current
Three-State Leakage Current
Three-State Leakage Current
Three-State Leakage Current
Three-State Leakage Current
Three-State Leakage Current
Three-State Leakage Current
IN
Applies to output and bidirectional pins: DATA
DMAG2, BR
See “Output Drive Currents” for typical drive current capabilities.
Applies to input pins: ACK SBTS, IRQ
Applies to input pins with internal pull-ups: DR0, DR1, TRST, TMS, TDI.
Applies to three-statable pins: DATA
TFSX, RFS
not requesting bus mastership.)
Applies to three-statable pins with internal pull-ups: DT0, DT1, TCLK0, TCLK1, RCLK0, RCLK1.
Applies to CPA pin.
Applies to ACK pin when pulled up. (Note that ACK is pulled up internally with 2 k Ω during reset in a multiprocessor system, when ID
ADSP-21062L is not requesting bus mastership).
Applies to three-statable pins with internal pull-downs: LxDAT
Applies to ACK pin when keeper latch enabled.
Applies to all signal pins.
Guaranteed but not tested.
@ VDD = min, IOH = –2.0 mA
@ VDD = min, IOL = 4.0 mA
@ VDD = max, VIN = V
@ VDD = max, V
@ VDD = max, V
5, 9
9
7
10
8
6
@ VDD = max, VIN = V
@ VDD = max, V
@ VDD = max, VIN = V
@ VDD = max, VIN = 0 V1.5mA
@ VDD = max, V
@ VDD = max, VIN = 0 V4.2mA
@ VDD = max, V
fIN = 1 MHz, T
, MS
31-0
, MS
, RD, WR, PAGE, ADRCLK, SW, ACK, FLAG
3-0
, RD, WR, PAGE, ADRCLK, SW, ACK, FLAG
3-0
, LxCLK, LxACK.
3-0
= 0 V10µA
IN
= 0 V150µA
IN
= 0 V10µA
IN
= 1.5 V350µA
IN
= 0 V150µA
IN
= 25°C, V
CASE
, RPBA, EBOOT, LBOOT, CLKIN, RESET, TCK.
2-0
, FLAG
2-0
max10µA
DD
max10µA
DD
max350µA
DD
, HBG, CS, DMAR1, DMAR2, BR
3-0
2
2
= 2.5 V4.7pF
IN
, LxCLK, LxACK, BMS, TDO, EMU, ICSA.
3-0
, REDY, HBG, DMAG1, DMAG2, BMS, BR
3-0
4.1V
0.4V
, TIMEXP, HBG, REDY, DMAG1,
3-0
= 001 and another ADSP-21062 is
2-0
= 001 and another
2-0
, ID
, RPBA,
6-1
2-0
,
6–1
REV. B
–13–
Page 14
ADSP-21062/ADSP-21062L
POWER DISSIPATION ADSP-21062 (5 V)
These specifications apply to the internal power portion of VDD only. See the Power Dissipation section of this data sheet for calculation of external supply current and total supply current. For a complete discussion of the code used to measure power dissipation, see
the technical note “SHARC Power Dissipation Measurements.”
Specifications are based on the following operating scenarios:
OperationPeak Activity (I
DDINPEAK
)High Activity (I
DDINHIGH
)Low Activity (I
DDINLOW
)
Instruction TypeMultifunctionMultifunctionSingle Function
Core Memory Access2 per Cycle (DM and PM)1 per Cycle (DM)None
Internal Memory DMA1 per Cycle1 per 2 Cycles1 per 2 Cycles
To estimate power consumption for a specific application, use the following equation where % is the amount of time your program
spends in that state:
%PEAK × I
DDINPEAK
+ %HIGH × I
DDINHIGH
+ %LOW × I
DDINLOW
+ %IDLE × I
= power consumption
DDIDLE
ParameterTest ConditionsMaxUnits
I
DDINPEAK
I
DDINHIGH
I
DDINLOW
I
DDIDLE
NOTES
1
The test program used to measure I
power measurements made using typical applications are less than specified.
2
I
3
Idle denotes ADSP-21062L state during execution of IDLE instruction.
is a composite average based on a range of high activity code. I
DDINHIGH
Supply Current (Internal)
Supply Current (Internal)
Supply Current (Internal)
Supply Current (Idle)
DDINPEAK
1
2
2
3
represents worst case processor operation and is not sustainable under normal application conditions. Actual internal
tCK = 30 ns, VDD = max745mA
= 25 ns, VDD = max850mA
t
CK
tCK = 30 ns, VDD = max575mA
= 25 ns, VDD = max670mA
t
CK
tCK = 30 ns, VDD = max340mA
= 25 ns, VDD = max390mA
t
CK
VDD = max200mA
is a composite average based on a range of low activity code.
DDINLOW
–14–
REV. B
Page 15
ADSP-21062/ADSP-21062L
ADSP-21062L–SPECIFICATIONS
RECOMMENDED OPERATING CONDITIONS (3.3 V)
A Grade C Grade K Grade
ParameterTest ConditionsMinMaxMinMaxMinMaxUnits
V
T
V
V
V
NOTES
1
2
ELECTRICAL CHARACTERISTICS (3.3 V)
ParameterTest ConditionsMinMaxUnits
V
V
I
IH
I
IL
I
ILP
I
OZH
I
OZL
I
OZHP
I
OZLC
I
OZLA
I
OZLAR
I
OZLS
C
NOTES
11
12
13
14
15
16
17
18
19
10
11
12
Specifications subject to change without notice.
Supply Voltage3.153.453.153.453.153.45V
DD
Case Operating Temperature–40+85–40+1000+85°C
CASE
High Level Input Voltage
IH1
High Level Input Voltage
IH2
Low Level Input Voltage
IL
Applies to input and bidirectional pins: DATA
CPA, TFS0, TFS1, RFS0, RFS1, LxDAT
Applies to input pins: CLKIN, RESET, TRST.
OH
OL
High Level Output Voltage
Low Level Output Voltage
High Level Input Current
Low Level Input Current
Low Level Input Current
Three-State Leakage Current
Three-State Leakage Current
Three-State Leakage Current
Three-State Leakage Current
Three-State Leakage Current
Three-State Leakage Current
Three-State Leakage Current
IN
Applies to output and bidirectional pins: DATA
DMAG2, BR
See “Output Drive Currents” for typical drive current capabilities.
Applies to input pins: ACK SBTS, IRQ
Applies to input pins with internal pull-ups: DR0, DR1, TRST, TMS, TDI.
Applies to three-statable pins: DATA
TFSX, RFS
not requesting bus mastership.)
Applies to three-statable pins with internal pull-ups: DT0, DT1, TCLK0, TCLK1, RCLK0, RCLK1.
Applies to CPA pin.
Applies to ACK pin when pulled up. (Note that ACK is pulled up internally with 2 k Ω during reset in a multiprocessor system, when ID
ADSP-21062L is not requesting bus mastership).
Applies to three-statable pins with internal pull-downs: LxDAT
Applies to ACK pin when keeper latch enabled.
Applies to all signal pins.
Guaranteed but not tested.
@ VDD = min, IOH = –2.0 mA
@ VDD = min, IOL = 4.0 mA
@ VDD = max, VIN = V
@ VDD = max, V
@ VDD = max, V
5, 9
9
7
10
8
6
, MS
@ VDD = max, VIN = V
@ VDD = max, V
@ VDD = max, VIN = V
@ VDD = max, VIN = 0 V1.5mA
@ VDD = max, V
@ VDD = max, VIN = 0 V4.2mA
@ VDD = max, V
fIN = 1 MHz, T
, MS
31-0
, RD, WR, PAGE, ADRCLK, SW, ACK, FLAG
3-0
, RD, WR, PAGE, ADRCLK, SW, ACK, FLAG
3-0
, LxCLK, LxACK.
3-0
CASE
, RPBA, EBOOT, LBOOT, CLKIN, RESET, TCK.
2-0
DD
= 0 V10µA
IN
= 0 V150µA
IN
DD
= 0 V10µA
IN
DD
= 1.5 V350µA
IN
= 0 V150µA
IN
= 25°C, V
, FLAG
2-0
2
, HBG, CS, DMAR1, DMAR2, BR
3-0
2
2.4V
max10µA
max10µA
max350µA
= 2.5 V4.7pF
IN
, TIMEXP, HBG, REDY, DMAG1,
3-0
, LxCLK, LxACK, BMS, TDO, EMU, ICSA.
3-0
, REDY, HBG, DMAG1, DMAG2, BMS, BR
3-0
= 001 and another ADSP-21062 is
2-0
2-0
, ID
, RPBA,
6-1
2-0
0.4V
= 001 and another
6–1
,
REV. B
–15–
Page 16
ADSP-21062/ADSP-21062L
POWER DISSIPATION ADSP-21062L (3.3 V)
These specifications apply to the internal power portion of VDD only. See the Power Dissipation section of this data sheet for calculation of external supply current and total supply current. For a complete discussion of the code used to measure power dissipation,
see the technical note “SHARC Power Dissipation Measurements.”
Specifications are based on the following operating scenarios:
OperationPeak Activity (I
DDINPEAK
)High Activity (I
DDINHIGH
)Low Activity (I
DDINLOW
)
Instruction TypeMultifunctionMultifunctionSingle Function
*Stresses greater than those listed above may cause permanent damage to the
device. These are stress ratings only; functional operation of the device at these or
any other conditions greater than those indicated in the operational sections of this
specification is not implied. Exposure to absolute maximum rating conditions for
extended periods may affect device reliability.
ESD SENSITIVITY
ABSOLUTE MAXIMUM RATINGS (3.3 V DEVICE)*
Supply Voltage . . . . . . . . . . . . . . . . . . . . . . . –0.3 V to +4.6 V
Input Voltage . . . . . . . . . . . . . . . . . . . . –0.5 V to V
Output Voltage Swing . . . . . . . . . . . . . –0.5 V to V
*Stresses greater than those listed above may cause permanent damage to the
device. These are stress ratings only; functional operation of the device at these or
any other conditions greater than those indicated in the operational sections of this
specification is not implied. Exposure to absolute maximum rating conditions for
extended periods may affect device reliability.
ESD (electrostatic discharge) sensitive device. Electrostatic charges as high as 4000 V readily
accumulate on the human body and test equipment and can discharge without detection. Although
the ADSP-21062 features proprietary ESD protection circuitry, permanent damage may occur on
devices subjected to high energy electrostatic discharges. Therefore, proper ESD precautions are
recommended to avoid performance degradation or loss of functionality.
TIMING SPECIFICATIONS
GENERAL NOTES
Two speed grades of the ADSP-21062 will be offered, 40 MHz
and 33.3 MHz. The specifications shown are based on a
CLKIN frequency of 40 MHz (t
= 25 ns). The DT derating
CK
allows specifications at other CLKIN frequencies (within the
min–max range of the t
specification; see Clock Input below).
CK
DT is the difference between the actual CLKIN period and a
CLKIN period of 25 ns:
DT = t
– 25 ns
CK
Use the exact timing information given. Do not attempt to
derive parameters from the addition or subtraction of others.
While addition or subtraction would yield meaningful results for
an individual device, the values given in this data sheet reflect
statistical variations and worst cases. Consequently, you cannot
meaningfully add parameters to derive longer times.
For voltage reference levels, see Figure 27 under Test Conditions.
Switching Characteristics specify how the processor changes its
signals. You have no control over this timing—circuitry external
to the processor must be designed for compatibility with these
signal characteristics. Switching characteristics tell you what the
processor will do in a given circumstance. You can also use
switching characteristics to ensure that any timing requirement
of a device connected to the processor (such as memory) is
satisfied.
Timing Requirements apply to signals that are controlled by circuitry external to the processor, such as the data input for a
read operation. Timing requirements guarantee that the processor operates correctly with other devices.
Applies after the power-up sequence is complete. At power-up, the processor’s internal phase-locked loop requires no more than 2000 CLKIN cycles while RESET
is low, assuming stable VDD and CLKIN (not including start-up time of external clock oscillator).
2
Only required if multiple ADSP-21062s must come out of reset synchronous to CLKIN with program counters (PC) equal (i.e., for a SIMD system). Not required
for multiple ADSP-21062s communicating over the shared bus (through the external port), because the bus arbitration logic synchronizes itself automatically after reset.
RESET Pulsewidth Low
RESET Setup Before CLKIN High
CLKIN
RESET
1
2
4t
CK
14 + DT/2t
t
WRST
CK
4t
CK
14 + DT/2t
t
SRST
CK
ns
ns
Figure 9. Reset
ADSP-21062 ADSP-21062L
ParameterMinMaxMinMaxUnits
Interrupts
Timing Requirements:
t
SIR
t
HIR
t
IPW
NOTES
1
Only required for IRQx recognition in the following cycle.
2
Applies only if t
IRQ2-0 Setup Before CLKIN High
IRQ2-0 Hold Before CLKIN High
IRQ2-0 Pulsewidth
and t
SIR
requirements are not met.
HIR
2
1
1
18 + 3DT/418 + 3DT/4ns
12 + 3DT/412 + 3DT/4ns
2 + t
CK
2 + t
CK
ns
CLKIN
IRQ2-0
t
SIR
t
HIR
t
IPW
Figure 10. Interrupts
–18–
REV. B
Page 19
ADSP-21062/ADSP-21062L
ADSP-21062 ADSP-21062L
ParameterMinMaxMinMaxUnits
Timer
Switching Characteristic:
t
DTEX
ParameterMinMaxMinMaxUnits
Flags
Timing Requirements:
t
SFI
t
HFI
t
DWRFI
t
HFIWR
CLKIN High to TIMEXP1515ns
CLKIN
t
DTEX
TIMEXP
t
DTEX
Figure 11. Timer
ADSP-21062 ADSP-21062L
FLAG3-0
FLAG3-0
FLAG3-0
FLAG3-0
Setup Before CLKIN High
IN
Hold After CLKIN High
IN
Delay After RD/WR Low
IN
Hold After RD/WR Deasserted100 ns
IN
1
1
1
8 + 5DT/168 + 5DT/16ns
0 – 5DT/160 – 5DT/16ns
5 + 7DT/165 + 7DT/16ns
Switching Characteristics:
t
DFO
t
HFO
t
DFOE
t
DFOD
NOTE
1
Flag inputs meeting these setup and hold times will affect conditional instructions in the following instruction cycle.
FLAG3-0
FLAG3-0
RD, WR
FLAG3-0
FLAG3-0
CLKIN High to FLAG3-0
CLKIN High to FLAG3-0
CLKIN
t
OUT
CLKIN
IN
Delay After CLKIN High1616ns
OUT
Hold After CLKIN High44ns
DFOE
OUT
t
DWRFI
FLAG INPUT
Enable33ns
OUT
Disable1414ns
OUT
t
t
DFO
FLAG OUTPUT
t
t
HFI
HFIWR
t
SFI
DFO
t
HFO
Figure 12. Flags
t
DFOD
REV. B
–19–
Page 20
ADSP-21062/ADSP-21062L
Memory Read—Bus Master
Use these specifications for asynchronous interfacing to memories (and memory-mapped peripherals) without reference to
CLKIN. These specifications apply when the ADSP-21062 is
characteristics also apply for bus master synchronous read/write
timing (see Synchronous Read/Write – Bus Master below). If
these timing requirements are met, the synchronous read/write
timing can be ignored (and vice versa).
the bus master accessing external memory space. These switching
ADSP-21062 ADSP-21062L
ParameterMinMaxMinMaxUnits
Timing Requirements:
t
DAD
t
DRLD
t
HDA
t
HDRH
t
DAAK
t
DSAK
Address, Selects Delay to Data Valid
RD Low to Data Valid
Data Hold from Address, Selects
Data Hold from RD High
ACK Delay from Address, Selects
ACK Delay from RD Low
W = (number of wait states specified in WAIT register) × t
HI = tCK (if an address hold cycle or bus idle cycle occurs, as specified in WAIT register; otherwise HI = 0).
H = tCK (if an address hold cycle occurs as specified in WAIT register; otherwise H = 0).
NOTES
1
Data Delay/Setup: User must meet t
2
Data Hold: User must meet t
given capacitive and dc loads.
3
ACK Delay/Setup: User must meet t
tion of ACK (High).
4
The falling edge of MSx, SW, BMS is referenced.
Address, Selects Hold After RD High0 + H0 + Hns
Address, Selects to RD Low
4
2 + 3DT/82 + 3DT/8ns
RD Pulsewidth12.5 + 5DT/8 + W12.5 + 5DT/8 + Wns
RD High to WR, RD, DMAGx Low8 + 3DT/8 + HI8 + 3DT/8 + HIns
Address, Selects Setup Before
ADRCLK High
HDA
4
or t
or t
DAD
HDRH
DAAK
or synchronous spec t
DRLD
or synchronous spec t
or t
or synchronous specification t
DSAK
0 + DT/40 + DT/4ns
CK.
.
SSDATI
. See System Hold Time Calculation under Test Conditions for the calculation of hold times
HSDATI
for deassertion of ACK (Low), all three specifications must be met for asser-
SACKC
ADDRESS
MSx, SW
BMS
DATA
ACK
WR, DMAG
ADRCLK
(OUT)
RD
t
SADADC
t
DARL
t
DAAK
t
t
DAD
DSAK
t
DRLD
t
RW
Figure 13. Memory Read—Bus Master
t
t
t
HDRH
DRHA
HDA
t
RWR
–20–
REV. B
Page 21
ADSP-21062/ADSP-21062L
Memory Write—Bus Master
Use these specifications for asynchronous interfacing to memories (and memory-mapped peripherals) without reference to
CLKIN. These specifications apply when the ADSP-21062 is
characteristics also apply for bus master synchronous read/write
timing (see Synchronous Read/Write–Bus Master). If these
timing requirements are met, the synchronous read/write timing
can be ignored (and vice versa).
the bus master accessing external memory space. These switching
ADSP-21062 ADSP-21062L
ParameterMinMaxMinMaxUnits
Timing Requirements:
t
DAAK
t
DSAK
ACK Delay from Address, Selects
ACK Delay from WR Low
Switching Characteristics:
t
DAWH
t
DAWL
t
WW
t
DDWH
t
DWHA
t
DATRWH
t
WWR
t
DDWR
t
WDE
t
SADADC
W = (number of wait states specified in WAIT register) × t
H = tCK (if an address hold cycle occurs, as specified in WAIT register; otherwise H = 0).
I = tCK (if a bus idle cycle occurs, as specified in WAIT register; otherwise I = 0).
NOTES
1
ACK Delay/Setup: User must meet t
tion of ACK (High).
2
The falling edge of MSx, SW, BMS is referenced.
3
See System Hold Time Calculation under Test Conditions for calculation of hold times given capacitive and dc loads.
Address, Selects to WR Deasserted
Address, Selects to WR Low
WR Pulsewidth12 + 9DT/16 + W12 + 9DT/16 + Wns
Data Setup Before WR High7 + DT/2 + W7 + DT/2 + Wns
Address Hold After WR Deasserted0.5 + DT/16 + H0.5 + DT/16 + Hns
Data Disable After WR Deasserted
WR High to WR, RD, DMAGx Low8 + 7DT/16 + H8 + 7DT/16 + Hns
Data Disable Before WR or RD Low5 + 3DT/8 + I5 + 3DT/8 + Ins
WR Low to Data Enabled–1 + DT/16–1 + DT/16ns
Address, Selects to ADRCLK High20 + DT/40 + DT/4
for deassertion of ACK (Low), all three specifications must be met for asser-
SACKC
ns
ADDRESS
MSx , SW
BMS
WR
DATA
ACK
RD , DMAG
ADRCLK
(OUT)
t
SADADC
t
DAWL
t
DAWH
t
WW
t
WDE
t
DSAK
t
DAAK
Figure 14. Memory Write—Bus Master
t
DDWH
t
DATRWH
t
DWHA
t
WWR
t
DDWR
REV. B
–21–
Page 22
ADSP-21062/ADSP-21062L
Synchronous Read/Write—Bus Master
Use these specifications for interfacing to external memory
systems that require CLKIN—relative timing or for accessing a
slave ADSP-21062 (in multiprocessor memory space). These
synchronous switching characteristics are also valid during asyn-
When accessing a slave ADSP-21062, these switching characteristics must meet the slave’s timing requirements for synchronous
read/writes (see Synchronous Read/Write—Bus Slave). The
slave ADSP-21062 must also meet these (bus master) timing
requirements for data and acknowledge setup and hold times.
chronous memory reads and writes (see Memory Read—Bus
Master and Memory Write—Bus Master).
ADSP-21062 ADSP-21062L
ParameterMinMaxMinMaxUnits
Timing Requirements:
t
SSDATI
t
HSDATI
t
DAAK
t
SACKC
t
HACK
Data Setup Before CLKIN3 + DT/83 + DT/8ns
Data Hold After CLKIN3.5 – DT/83.5 – DT/8ns
ACK Delay After Address, MSx,
SW, BMS
ACK Setup Before CLKIN
1, 2
2
6.5 + DT/46.5 + DT/4ns
14 + 7 DT/8 + W14 + 7 DT/8 + Wns
ACK Hold After CLKIN–1 – DT/4–1 – DT/4ns
Switching Characteristics:
t
DADRO
t
HADRO
Address, MSx, BMS, SW Delay
After CLKIN
1
Address, MSx, BMS, SW Hold
7 – DT/87 – DT/8ns
After CLKIN–1 – DT/8–1 – DT/8ns
t
DPGC
t
DRDO
t
DWRO
t
DRWL
t
SDDATO
t
DATTR
t
DADCCK
t
ADRCK
t
ADRCKH
t
ADRCKL
W = (number of Wait states specified in WAIT register) × t
NOTES
1
The falling edge of MSx, SW, BMS is referenced.
2
ACK Delay/Setup: User must meet t
of ACK (High).
3
See System Hold Time Calculation under Test Conditions for calculation of hold times given capacitive and dc loads.
for deassertion of ACK (Low), all three specifications must be met for assertion
SACKC
–22–
REV. B
Page 23
CLKIN
ADRCLK
ADDRESS
MSx, SW
PAGE
ACK
(IN)
READ CYCLE
RD
DATA
(IN)
t
DADRO
t
DADCCK
t
t
DPGC
DRWL
t
DAAK
t
ADRCKH
ADSP-21062/ADSP-21062L
t
ADRCK
t
SACKC
t
SSDATI
t
t
HADRO
t
HACK
t
HSDATI
ADRCKL
t
DRDO
WRITE CYCLE
WR
DATA
(OUT)
t
DRWL
t
SDDATO
Figure 15. Synchronous Read/Write—Bus Master
t
DWRO
t
DATTR
REV. B
–23–
Page 24
ADSP-21062/ADSP-21062L
Synchronous Read/Write—Bus Slave
Use these specifications for ADSP-21062 bus master accesses of
memory space). The bus master must meet these (bus slave)
timing requirements.
a slave’s IOP registers or internal memory (in multiprocessor
ADSP-21062 ADSP-21062L
ParameterMinMaxMinMaxUnits
Timing Requirements:
t
SADRI
t
HADRI
t
SRWLI
t
HRWLI
t
RWHPI
t
SDATWH
t
HDATWH
Address, SW Setup Before CLKIN15 + DT/215 + DT/2ns
Address, SW Hold Before CLKIN5 + DT/25 + DT/2ns
RD/WR Low Setup Before CLKIN19.5 + 5DT/169.5 + 5DT/16ns
RD/WR Low Hold After CLKIN–4 – 5DT/168 + 7DT/16–4 – 5DT/168 + 7DT/16ns
RD/WR Pulse High33ns
Data Setup Before WR High55ns
Data Hold After WR High11ns
Switching Characteristics:
t
SDDATO
t
DATTR
t
DACKAD
t
ACKTR
NOTES
1
t
SRWLI
= 4 + DT/8.
2
See System Hold Time Calculation under Test Conditions for calculation of hold times given capacitive and dc loads.
3
t
DACKAD
setup times greater than 19 + 3DT/4, then ACK is valid 14 + DT/4 (max) after CLKIN. A slave that sees an address with an M field match will respond with ACK
regardless of the state of MMSWS or strobes. A slave will three-state ACK every cycle with t
Data Delay After CLKIN19 + 5DT/1619 + 5DT/16ns
Data Disable After CLKIN
ACK Delay After Address, SW
ACK Disable After CLKIN
(min) = 9.5 + 5DT/16 when Multiprocessor Memory Space Wait State (MMSWS bit in WAIT register) is disabled; when MMSWS is enabled, t
is true only if the address and SW inputs have setup times (before CLKIN) greater than 10 + DT/8 and less than 19 + 3DT/4. If the address and SW inputs have
2
3
3
0 – DT/87 – DT/80 – DT/87 – DT/8ns
99ns
–1 – DT/86 – DT/8–1 – DT/86 – DT/8ns
SRWLI
.
ACKTR
(min)
–24–
REV. B
Page 25
CLKIN
ADDRESS
SW
ACK
t
DACKAD
t
SADRI
ADSP-21062/ADSP-21062L
t
HADRI
t
ACKTR
READ ACCESS
RD
DATA
(OUT)
WRITE ACCESS
WR
DATA
(IN)
t
SRWLI
t
SDDATO
t
SRWLI
t
SDATWH
Figure 16. Synchronous Read/Write—Bus Slave
t
HRWLI
t
HRWLI
t
HDATWH
t
DATTR
t
t
RWHPI
RWHPI
REV. B
–25–
Page 26
ADSP-21062/ADSP-21062L
Multiprocessor Bus Request and Host Bus Request
Use these specifications for passing of bus mastership between
multiprocessing ADSP-21062s (BRx) or a host processor
(HBR, HBG).
ADSP-21062 ADSP-21062L
ParameterMinMaxMinMaxUnits
Timing Requirements:
t
HBGRCSV
t
SHBRI
t
HHBRI
t
SHBGI
t
HHBGI
t
SBRI
t
HBRI
t
SRPBAI
t
HRPBAI
HBG Low to RD/WR/CS Valid
HBR Setup Before CLKIN
HBR Hold Before CLKIN
HBG Setup Before CLKIN13 + DT/213 + DT/2ns
HBG Hold Before CLKIN High6 + DT/26 + DT/2ns
BRx, CPA Setup Before CLKIN
BRx, CPA Hold Before CLKIN High6 + DT/26 + DT/2ns
RPBA Setup Before CLKIN21 + 3DT/421 + 3DT/4ns
RPBA Hold Before CLKIN12 + 3DT/412 + 3DT/4ns
Switching Characteristics:
t
DHBGO
t
HHBGO
t
DBRO
t
HBRO
t
DCPAO
t
TRCPA
t
DRDYCS
HBG Delay After CLKIN7 – DT/87 – DT/8ns
HBG Hold After CLKIN–2 – DT/8–2 – DT/8ns
BRx Delay After CLKIN7 – DT/87 – DT/8ns
BRx Hold After CLKIN–2 – DT/8–2 – DT/8ns
CPA Low Delay After CLKIN8 – DT/88 – DT/8ns
CPA Disable After CLKIN–2 – DT/84.5 – DT/8–2 – DT/84.5 – DT/8ns
REDY (O/D) or (A/D) Low from CS
and HBR Low
t
TRDYHG
REDY (O/D) Disable or REDY (A/D)
High from HBG
t
ARDYTR
REDY (A/D) Disable from CS or
HBR High
4
4
4
1
2
2
3
20 + 3DT/420 + 3DT/4ns
13 + DT/213 + DT/2ns
20 + 5DT/420 + 5DT/4ns
14 + 3DT/414 + 3DT/4ns
8.58.75ns
44 + 23DT/1644 + 23DT/16ns
1010ns
NOTES
1
For first asynchronous access after HBR and CS asserted, ADDR
low. This is easily accomplished by driving an upper address signal high when HBG is asserted. See the “Host Processor Control of the ADSP-21062” section in the
ADSP-21062 SHARC User’s Manual, Second Edition.
2
Only required for recognition in the current cycle.
3
CPA assertion must meet the setup to CLKIN; deassertion does not need to meet the setup to CLKIN.
4
(O/D) = open drain, (A/D) = active drive.
must be a non-MMS value 1/2 tCK before RD or WR goes low or by t
31-0
HBGRCSV
after HBG goes
–26–
REV. B
Page 27
CLKIN
HBR
HBG
(OUT)
BRx
(OUT)
CPA (OUT)
(O/D)
HBG (IN)
BRx (IN)
CPA (IN) (O/D)
RPBA
t
SHBRI
t
SRPBAI
t
HHBRI
t
HRPBAI
t
HHBGO
t
HBRO
t
DHBGO
t
DBRO
t
DCPAO
ADSP-21062/ADSP-21062L
t
TRCPA
t
SHBGI
t
HHBGI
t
SBRI
t
HBRI
HBR
AND
REDY (O/D)
REDY (A/D)
HBG (OUT)
CS
t
DRDYCS
RD
WR
CS
O/D = OPEN DRAIN, A/D = ACTIVE DRIVE
Figure 17. Multiprocessor Bus Request and Host Bus Request
t
HBGRCSV
t
TRDYHG
t
ARDYTR
REV. B
–27–
Page 28
ADSP-21062/ADSP-21062L
Asynchronous Read/Write—Host to ADSP-21062
Use these specifications for asynchronous host processor accesses
of an ADSP-21062, after the host has asserted CS and HBR
drive the RD and WR pins to access the ADSP-21062’s internal
memory or IOP registers. HBR and HBG are assumed low for
this timing.
(low). After HBG is returned by the ADSP-21062, the host can
ADSP-21062ADSP-21062L
ParameterMinMaxMinMaxUnits
Read Cycle
Timing Requirements:
t
SADRDL
t
HADRDH
t
WRWH
t
DRDHRDY
t
DRDHRDY
Address Setup/CS Low Before RD Low
Address Hold/CS Hold Low After RD00 ns
RD/WR High Width66ns
RD High Delay After REDY (O/D) Disable00ns
RD High Delay After REDY (A/D) Disable00ns
1
00 ns
Switching Characteristics:
t
SDATRDY
t
DRDYRDL
t
RDYPRD
Data Valid Before REDY Disable from Low22ns
REDY (O/D) or (A/D) Low Delay After RD Low1010ns
REDY (O/D) or (A/D) Low Pulse
Width for Read45 + 21DT/1645 + 21DT/16ns
t
HDARWH
Data Disable After RD High2828ns
Write Cycle
Timing Requirements:
t
SCSWRL
t
HCSWRH
t
SADWRH
t
HADWRH
t
WWRL
t
WRWH
t
DWRHRDY
CS Low Setup Before WR low00ns
CS Low Hold After WR high00ns
Address Setup Before WR High55ns
Address Hold After WR High22ns
WR Low Width77ns
RD/WR High Width66ns
WR High Delay After REDY
(O/D) or (A/D) Disable00ns
t
SDATWH
t
HDATWH
Data Setup Before WR High55ns
Data Hold After WR High11ns
Switching Characteristics:
t
DRDYWRL
REDY (O/D) or (A/D) Low Delay
After WR/CS Low1010ns
t
RDYPWR
REDY (O/D) or (A/D) Low Pulse
Width for Write15 + 7DT/1615 + 7DT/16ns
t
SRDYCK
NOTE
1
Not required if RD and address are valid t
or WR goes low or by t
sor Control of the ADSP-21062” section in the ADSP-21062 SHARC User’s Manual, Second Edition.
REDY (O/D) or (A/D) Disable to CLKIN1 + 7DT/168 + 7DT/161 + 7DT/168 + 7DT/16ns
after HBG goes low. For first access after HBR asserted, ADDR
after HBG goes low. This is easily accomplished by driving an upper address signal high when HBG is asserted. See the “Host Proces-
HBGRCSV
HBGRCSV
CLKIN
REDY (O/D)
REDY (A/D)
O/D = OPEN DRAIN, A/D = ACTIVE DRIVE
Figure 18a. Synchronous REDY Timing
t
SRDYCK
must be a non-MMS value 1/2 t
31-0
before RD
CLK
–28–
REV. B
Page 29
READ CYCLE
ADDRESS/CS
ADSP-21062/ADSP-21062L
RD
DATA (OUT)
REDY (O/D)
REDY (A/D)
WRITE CYCLE
ADDRESS
CS
WR
DATA (IN)
REDY (O/D)
t
SADRDL
t
SCSWRL
t
DRDYRDL
t
DRDYWRL
t
t
t
WWRL
t
SDATRDY
RDYPRD
RDYPWR
t
SADWRH
t
SDATWH
t
DRDHRDY
t
HCSWRH
t
DWRHRDY
t
HDARWH
t
HADWRH
t
HDATWH
t
HADRDH
t
WRWH
t
WRWH
REDY (A/D)
REV. B
O/D = OPEN DRAIN, A/D = ACTIVE DRIVE
Figure 18b. Asynchronous Read/Write—Host to ADSP-21062
–29–
Page 30
ADSP-21062/ADSP-21062L
Three-State Timing—Bus Master, Bus Slave, HBR, SBTS
These specifications show how the memory interface is disabled
(stops driving) or enabled (resumes driving) relative to CLKIN
and the SBTS pin. This timing is applicable to bus master transition cycles (BTC) and host transition cycles (HTC) as well as
the SBTS pin.
ADSP-21062 ADSP-21062L
ParameterMinMaxMinMaxUnits
Timing Requirements:
t
STSCK
t
HTSCK
SBTS Setup Before CLKIN12 + DT/212 + DT/2ns
SBTS Hold Before CLKIN6 + DT/26 + DT/2ns
Switching Characteristics:
t
MIENA
t
MIENS
t
MIENHG
t
MITRA
t
MITRS
t
MITRHG
t
DATEN
t
DATTR
t
ACKEN
t
ACKTR
t
ADCEN
t
ADCTR
t
MTRHBG
t
MENHBG
Address/Select Enable After CLKIN–1 – DT/8–1.25 – DT/8ns
Strobes Enable After CLKIN
1
–1.5 – DT/8–1.5 – DT/8ns
HBG Enable After CLKIN–1.5 – DT/8–1.5 – DT/8ns
Address/Select Disable After CLKIN0 – DT/40 – DT/4ns
Strobes Disable After CLKIN
HBG Disable After CLKIN2.0 – DT/42.0 – DT/4ns
Data Enable After CLKIN
Data Disable After CLKIN
ACK Enable After CLKIN
ACK Disable After CLKIN
These specifications describe the three DMA handshake modes.
In all three modes DMAR is used to initiate transfers. For handshake mode, DMAG controls the latching or enabling of data
externally. For external handshake mode, the data transfer is
controlled by the ADDR
, RD, WR, SW, PAGE, MS
31-0
3-0
,
transfer is controlled by ADDR31-0, RD, WR, MS
(not DMAG). For Paced Master mode, the Memory Read–Bus
Master, Memory Write–Bus Master, and Synchronous Read/
Write–Bus Master timing specifications for ADDR
, SW, PAGE, DATA47-0, and ACK also apply.
MS
3-0
, and ACK
3-0
, RD, WR,
31-0
ACK, and DMAG signals. For Paced Master mode, the data
ADSP-21062 ADSP-21062L
ParameterMinMaxMinMaxUnits
Timing Requirements:
t
SDRLC
t
SDRHC
t
WDR
t
SDATDGL
t
HDATIDG
t
DATDRH
t
DMARLL
t
DMARH
DMARx Low Setup Before CLKIN155ns
DMARx High Setup Before CLKIN155ns
DMARx Width Low
(Nonsynchronous)66ns
Data Setup After DMAGx Low
Data Hold After DMAGx High22ns
Data Valid After DMARx High
DMAGx Low Delay After CLKIN9 + DT/415 + DT/49 + DT/415 + DT/4ns
DMAGx High Width6 + 3DT/86 + 3DT/8ns
DMAGx Low Width12 + 5DT/812 + 5DT/8ns
DMAGx High Delay After CLKIN–2 – DT/86 – DT/8–2 – DT/86 – DT/8ns
Data Valid Before DMAGx High
Data Disable After DMAGx High
3
8 + 9DT/168 + 9DT/16ns
4
0707ns
WR Low Before DMAGx Low–0.252–0.252ns
DMAGx Low Before WR High10 + 5DT/8 + W10 + 5DT/8 + Wns
WR High Before DMAGx High1 + DT/163 + DT/161 + DT/163 + DT/16ns
RD Low Before DMAGx Low0202ns
RD Low Before DMAGx High11 + 9DT/16 + W11 + 9DT/16 + Wns
RD High Before DMAGx High0303ns
DMAGx High to WR, RD, DMAGx
Low5 + 3DT/8 + HI5 + 3DT/8 + HIns
t
DADGH
t
DDGHA
Address/Select Valid to DMAGx High 17 + DT17 + DTns
Address/Select Hold after DMAGx
High–0.5–1ns
W = (number of wait states specified in WAIT register) × t
HI = tCK (if an address hold cycle or bus idle cycle occurs, as specified in WAIT register; otherwise HI = 0).
NOTES
1
Only required for recognition in the current cycle.
2
t
is the data setup requirement if DMARx is not being used to hold off completion of a write. Otherwise, if DMARx low holds off completion of the write, the
SDATDGL
data can be driven t
3
t
is valid if DMARx is not being used to hold off completion of a read. If DMARx is used to prolong the read, then t
VDATDGH
n equals the number of extra cycles that the access is prolonged.
4
See System Hold Time Calculation under Test Conditions for calculation of hold times given capacitive and dc loads.
after DMARx is brought high.
DATDRH
CK
.
= 8 + 9DT/16 + (n × t
VDATDGH
) where
CK
REV. B
–31–
Page 32
ADSP-21062/ADSP-21062L
CLKIN
t
SDRLC
DMARx
DMAGx
t
DMARLL
t
WDR
t
DDGL
t
t
WDGL
SDRHC
t
DMARH
t
HDGC
t
WDGH
TRANSFERS BETWEEN ADSP-2106x INTERNAL MEMORY AND EXTERNAL DEVICE
DATA (FROM
ADSP-2106x TO
EXTERNAL DRIVE)
t
DATDRH
t
DATA (FROM
EXTERNAL DRIVE
TO ADSP-2106x)
SDATDGL
TRANSFERS BETWEEN EXTERNAL DEVICE AND EXTERNAL MEMORY* (EXTERNAL HANDSHAKE MODE)
t
WR
(EXTERNAL DEVICE
TO EXTERNAL
MEMORY)
RD
(EXTERNAL
MEMORY TO
EXTERNAL DEVICE)
ADDRESS
MSx, SW
*
MEMORY READ – BUS MASTER, MEMORY WRITE – BUS MASTER, AND SYNCHRONOUS READ/WRITE – BUS MASTER
TIMING SPECIFICATIONS FOR ADDR
, RD, WR, SW, MS
31-0
3-0
DGWRL
t
DGRDL
AND ACK ALSO APPLY HERE.
t
DGWRH
t
DADGH
t
DRDGH
Figure 20. DMA Handshake Timing
t
VDATDGH
t
DGWRR
t
DGRDR
t
DATRDGH
t
HDATIDG
t
DDGHA
–32–
REV. B
Page 33
ADSP-21062/ADSP-21062L
Link Ports: 1 ⴛ CLK Speed Operation
ADSP-21062 ADSP-21062L
ParameterMinMaxMinMaxUnits
Receive
Timing Requirements:
t
SLDCL
t
HLDCL
t
LCLKIW
t
LCLKRWL
t
LCLKRWH
Switching Characteristics:
t
DLAHC
t
DLALC
t
ENDLK
t
TDLK
Transmit
Timing Requirements:
t
SLACH
t
HLACH
Switching Characteristics:
t
DLCLK
t
DLDCH
t
HLDCH
t
LCLKTWL
t
LCLKTWH
t
DLACLK
t
ENDLK
t
TDLK
Data Setup Before LCLK Low33ns
Data Hold After LCLK Low33ns
LCLK Period (1 × Operation)t
CK
t
CK
ns
LCLK Width Low66ns
LCLK Width High55ns
LACK High Delay After CLKIN High18 + DT/228.5 + DT/218 + DT/228.5 + DT/2ns
LACK Low Delay After LCLK High
1
–313–313ns
LACK Enable from CLKIN5 + DT/25 + DT/2ns
LACK Disable from CLKIN20 + DT/220 + DT/2ns
LACK Setup Before LCLK High1818ns
LACK Hold After LCLK High–7–7ns
LCLK Delay After CLKIN (1 × operation)15.515.5ns
Data Delay After LCLK High2.52.5ns
Data Hold After LCLK High–3–3ns
LCLK Width Low(tCK/2) – 1(tCK/2) + 1.25(tCK/2) – 1(tCK/2) + 1.5ns
LCLK Width High(tCK/2) – 1.25(tCK/2) + 1(tCK/2) – 1.5(tCK/2) + 1ns
LCLK Low Delay After LACK High(t
/2) + 8.75(3 × t
CK
/2) + 17 (t
CK
/2) + 8(3 × t
CK
/2) + 17 ns
CK
LDAT, LCLK Enable After CLKIN5 + DT/25 + DT/2ns
LDAT, LCLK Disable After CLKIN20 + DT/220 + DT/2ns
Link Port Service Request Interrupts: 1 × and
2 × Speed Operations
Timing Requirements:
t
SLCK
t
HLCK
NOTES
1
LACK will go low with t
2
Only required for interrupt recognition in the current cycle.
LACK/LCLK Setup Before CLKIN Low21010ns
LACK/LCLK Hold After CLKIN Low222ns
relative to rising edge of LCLK after first nibble is received. LACK will not go low if the receiver’s link buffer is not about to fill.
DLALC
REV. B
–33–
Page 34
ADSP-21062/ADSP-21062L
Link Ports: 2 ⴛ CLK Speed Operation
Calculation of link receiver data setup and hold relative to link
clock is required to determine the maximum allowable skew that
can be introduced in the transmission path between LDATA
and LCLK. Setup skew is the maximum delay that can be introduced in LDATA relative to LCLK, (setup skew = t
min – t
DLDCH
– t
). Hold skew is the maximum delay that
SLDCL
LCLKTWH
can be introduced in LCLK relative to LDATA, (hold skew =
t
LCLKTWL
min – t
HLDCH
– t
). Calculations made directly
HLDCL
from 2 × speed specifications will result in unrealistically small
skew times because they include multiple tester guardbands. The
setup and hold skew times shown below are calculated to include
only one tester guardband.
ADSP-21062 Setup Skew= 1.84 ns max
ADSP-21062 Hold Skew= 2.78 ns max
ADSP-21062L Setup Skew = 2.10 ns max
ADSP-21062L Hold Skew = 1.87 ns max
ADSP-21062 ADSP-21062L
ParameterMinMaxMinMaxUnits
Receive
Timing Requirements:
t
SLDCL
t
HLDCL
t
LCLKIW
t
LCLKRWL
t
LCLKRWH
Data Setup Before LCLK Low2.52.25ns
Data Hold After LCLK Low2.252.25ns
LCLK Period (2 × Operation)t
/2tCK/2ns
CK
LCLK Width Low4.55.25ns
LCLK Width High44ns
Switching Characteristics:
t
DLAHC
t
DLALC
LACK High Delay After CLKIN High18 + DT/228.5 + DT/218 + DT/229.5 + DT/2ns
LACK Low Delay After LCLK High1616616ns
Transmit
Timing Requirements:
t
SLACH
t
HLACH
LACK Setup Before LCLK High1919ns
LACK Hold After LCLK High–6.75–6.5ns
Switching Characteristics:
t
DLCLK
t
DLDCH
t
HLDCH
t
LCLKTWL
t
LCLKTWH
t
DLACLK
NOTE
1
LACK will go low with t
LCLK Delay After CLKIN88ns
Data Delay After LCLK High2.252.25ns
Data Hold After LCLK High–2.0–2.25ns
LCLK Width Low(tCK/4) – 1(tCK/4) + 1.25(tCK/4) – 1(tCK/4) + 1.5ns
LCLK Width High(tCK/4) – 1.25 (tCK/4) + 1(tCK/4) – 1.5(tCK/4) + 1ns
LCLK Low Delay After LACK High(t
DLALC
/4) + 9(3 × t
CK
relative to rising edge of LCLK after first nibble is received. LACK will not go low if the receiver’s link buffer is not about to fill.
/4) + 16.5(t
CK
/4) + 9(3 × t
CK
/4) + 16.5ns
CK
–34–
REV. B
Page 35
TRANSMIT
CLKIN
LCLK 1x
OR
LCLK 2x
t
DLCLK
t
LCLKTWH
t
HLDCH
t
DLDCH
t
LCLKTWL
LAST NIBBLE
TRANSMITTED
FIRST NIBBLE
TRANSMITTED
ADSP-21062/ADSP-21062L
LCLK INACTIVE
(HIGH)
LDAT(3:0)
LACK (IN)
THE
OUT
t
SLACH
t
REQUIREMENT APPLIES TO THE RISING EDGE OF LCLK ONLY FOR THE FIRST NIBBLE TRANSMITTED.
SLACH
RECEIVE
CLKIN
t
LCLKIW
t
HLDCL
IN
t
LCLKRWL
LCLK 1x
OR
LCLK 2x
LDAT(3:0)
LACK (OUT)
t
DLAHC
t
LCLKRWH
t
SLDCL
LINK PORT ENABLE/THREE-STATE DELAY FROM INSTRUCTION
CLKIN
LCLK
LDAT(3:0)
LACK
t
ENDLK
LINK PORT ENABLE OR THREE-STATE TAKES EFFECT TWO CYCLES AFTER A WRITE TO A LINK PORT CONTROL REGISTER.
t
TDLK
t
HLACH
t
DLALC
t
DLACLK
LINK PORT INTERRUPT SETUP TIME
CLKIN
LCLK
LACK
REV. B
t
SLCK
t
HLCK
Figure 21. Link Ports
–35–
Page 36
ADSP-21062/ADSP-21062L
Serial Ports
ADSP-21062 ADSP-21062L
ParameterMinMaxMinMaxUnits
External Clock
Timing Requirements:
t
SFSE
t
HFSE
t
SDRE
t
HDRE
t
SCLKW
t
SCLK
Internal Clock
Timing Requirements:
t
SFSI
t
HFSI
t
SDRI
t
HDRI
External or Internal Clock
Switching Characteristics:
t
DFSE
t
HOFSE
External Clock
Switching Characteristics:
t
DFSE
t
HOFSE
t
DDTE
t
HDTE
Internal Clock
Switching Characteristics:
t
DFSI
t
HOFSI
t
DDTI
t
HDTI
t
SCLKIW
Enable and Three-State
Switching Characteristics:
t
DDTEN
t
DDTTE
t
DDTIN
t
DDTTI
t
DCLK
t
DPTR
Gated SCLK with External TFS
(Mesh Multiprocessing)
Timing Requirements:
t
STFSCK
t
HTFSCK
External Late Frame Sync
Switching Characteristics:
t
DDTLFSE
t
DDTENFS
To determine whether communication is possible between two devices at clock speed n, the following specifications must be confirmed: 1) frame sync delay and frame sync setup
and hold, 2) data delay and data setup and hold, and 3) SCLK width.
TFS/RFS Setup Before TCLK/RCLK13.53.5ns
TFS/RFS Hold After TCLK/RCLK
Receive Data Setup Before RCLK
Receive Data Hold After RCLK
1, 2
1
1
44ns
1.51.5ns
44ns
TCLK/RCLK Width99ns
TCLK/RCLK Periodt
TFS Setup Before TCLK1; RFS Setup
Before RCLK
TFS/RFS Hold After TCLK/RCLK
Receive Data Setup Before RCLK
Receive Data Hold After RCLK
RFS Delay After RCLK (Internally
Generated RFS)
RFS Hold After RCLK (Internally
Generated RFS)
TFS Delay After TCLK (Internally
Generated TFS)
TFS Hold After TCLK (Internally
Generated TFS)
Transmit Data Delay After TCLK
Transmit Data Hold After TCLK
TFS Delay After TCLK (Internally
Generated TFS)
TFS Hold After TCLK (Internally
Generated TFS)
Transmit Data Delay After TCLK
Transmit Data Hold After TCLK
1
1, 2
1
1
3
3
3
3
3
3
3
3
3
3
TCLK/RCLK Width(t
Data Enable from External TCLK
Data Disable from External TCLK
Data Enable from Internal TCLK
Data Disable from Internal TCLK
3
3
3
3
CK
88ns
11ns
33ns
33ns
1313ns
33ns
1313ns
33ns
1616ns
55ns
4.54.5ns
–1.5–1.5ns
7.57.5ns
00ns
/2) – 2.5(t
SCLK
/2) + 2.5(t
SCLK
4.254ns
10.516ns
00ns
37.5ns
t
CK
SCLK
/2) – 2.5(t
/2) + 2.5ns
SCLK
ns
TCLK/RCLK Delay from CLKIN22 + 3DT/822 + 3DT/8ns
SPORT Disable After CLKIN1717ns
4
TFS Setup Before CLKIN55ns
TFS Hold After CLKINtCK/2tCK/2ns
Data Delay from Late External TFS or
External RFS with MCE = 1, MFD = 0
Data Enable from late FS or MCE = 1,
MFD = 0
5
5
12.7512.75ns
3.53.5ns
–36–
REV. B
Page 37
ADSP-21062/ADSP-21062L
NOTES
1
Referenced to sample edge.
2
RFS hold after RCK when MCE = 1, MFD = 0 is 0 ns minimum from drive edge. TFS hold after TCK for late external TFS is 0 ns minimum from drive edge.
3
Referenced to drive edge.
4
Applies only to gated serial clock mode used for serial port system I/O in mesh multiprocessing systems.
5
MCE = 1, TFS enable and TFS valid follow t
DATA RECEIVE– INTERNAL CLOCK
DRIVE
RCLK
RFS
DR
EDGE
t
HOFSE
NOTE: EITHER THE RISING EDGE OR FALLING EDGE OF RCLK, TCLK CAN BE USED AS THE ACTIVE SAMPLING EDGE.
t
DFSE
t
SCLKIW
DDTLFSE
t
SFSI
t
SDRI
and t
SAMPLE
EDGE
DDTENFS
t
HFSI
t
HDRI
.
DATA RECEIVE– EXTERNAL CLOCK
RCLK
RFS
DR
DRIVE
EDGE
t
HOFSE
t
DFSE
t
SCLKW
t
SFSE
t
SDRE
SAMPLE
EDGE
t
HFSE
t
HDRE
DATA TRANSMIT– INTERNAL CLOCK
DRIVE
TCLK
TFS
DT
EDGE
TCLK (EXT)
DT
TCLK (INT)
t
HOFSI
t
HDTI
NOTE: EITHER THE RISING EDGE OR FALLING EDGE OF RCLK, TCLK CAN BE USED AS THE ACTIVE SAMPLING EDGE.
t
DFSI
t
DDTI
DRIVE
EDGE
DRIVE
EDGE
t
DDTEN
t
DDTIN
t
SCLKIW
t
SFSI
SAMPLE
EDGE
DATA TRANSMIT– EXTERNAL CLOCK
DRIVE
EDGE
TCLK
t
t
HFSI
TFS
DT
TCLK / RCLK
TCLK / RCLK
HOFSE
t
HDTE
DRIVE
EDGE
DRIVE
EDGE
t
DFSE
t
t
DDTE
t
DDTTE
DDTTI
t
SCLKW
t
SFSE
SAMPLE
EDGE
t
HFSE
REV. B
CLKIN
TCLK, RCLK
TFS, RFS, DT
TCLK (INT)
RCLK (INT)
DT
SPORT DISABLE DELAY
FROM INSTRUCTION
LOW TO HIGH ONLY
t
DCLK
t
DPTR
SPORT ENABLE AND
THREE-STATE
LATENCY
IS TWO CYCLES
Figure 22. Serial Ports
–37–
CLKIN
t
t
STFSCK
TFS (EXT)
NOTE: APPLIES ONLY TO GATED SERIAL CLOCK MODE WITH
EXTERNAL TFS, AS USED IN THE SERIAL PORT SYSTEM I/O FOR
MESH MULTIPROCESSING.
HTFSCK
Page 38
ADSP-21062/ADSP-21062L
EXTERNAL RFS with MCE = 1, MFD = 0
RCLK
RFS
DT
LATE EXTERNAL TFS
DRIVESAMPLEDRIVE
t
SFSE/I
t
DDTLFSE
t
DDTENFS
t
HDTE/I
1ST BIT2ND BIT
t
HOFSE/I
t
DDTE/I
(SEE NOTE 2
ON PREVIOUS PAGE)
TCLK
TFS
DT
t
HDTE/I
DRIVE
t
HOFSE/I
t
DDTE/I
DRIVESAMPLE
t
SFSE/I
t
DDTENFS
1ST BIT2ND BIT
t
DDTLFSE
Figure 23. External Late Frame Sync
(SEE NOTE 2
ON PREVIOUS PAGE)
–38–
REV. B
Page 39
ADSP-21062/ADSP-21062L
JTAG Test Access Port and Emulation
ADSP-21062 ADSP-21062L
ParameterMinMaxMinMaxUnits
Timing Requirements:
t
TCK
t
STAP
t
HTAP
t
SSYS
t
HSYS
t
TRSTW
Switching Characteristics:
t
DTDO
t
DSYS
NOTES
1
System Inputs = DATA
TCLK0, TCLK1, RCLK0, RCLK1, TFS0, TFS1, RFS0, RFS1, LxDAT
2
System Outputs = DATA
DT1, TCLK0, TCLK1, RCLK0, RCLK1, TFS0, TFS1, RFS0, RFS1, LxDAT
TCK Periodt
CK
t
CK
ns
TDI, TMS Setup Before TCK High55ns
TDI, TMS Hold After TCK High66ns
System Inputs Setup Before TCK Low177ns
System Inputs Hold After TCK Low
TRST Pulsewidth4t
TDO Delay from TCK Low1313ns
System Outputs Delay After TCK Low
Figure 28 shows typical I-V characteristics for the output drivers
of the ADSP-21062. The curves represent the current drive
capability of the output drivers as a function of output voltage.
POWER DISSIPATION
Total power dissipation has two components, one due to internal circuitry and one due to the switching of external output
drivers. Internal power dissipation is dependent on the instruction execution sequence and the data operands involved. Internal power dissipation is calculated in the following way:
P
INT
= I
DDIN
× V
DD
The external component of total power dissipation is caused by
the switching of output pins. Its magnitude depends on:
– the number of output pins that switch during each cycle (O)
– the maximum frequency at which they can switch (f)
– their load capacitance (C)
– their voltage swing (V
DD
)
and is calculated by:
P
= O × C × V
EXT
DD
2
× f
The load capacitance should include the processor’s package
capacitance (C
). The switching frequency includes driving the
IN
load high and then back low. Address and data pins can drive
high and low at a maximum rate of 1/(2t
can switch every cycle at a frequency of 1/t
at 1/(2t
), but selects can switch on each cycle.
CK
). The write strobe
CK
. Select pins switch
CK
Example:
Estimate P
with the following assumptions:
EXT
–A system with one bank of external data memory RAM (32-bit)
–Four 128K
×
8 RAM chips are used, each with a load of 10 pF
–External data memory writes occur every other cycle, a rate
of 1/(4t
–The instruction cycle rate is 40 MHz (t
The P
), with 50% of the pins switching
CK
equation is calculated for each class of pins that can
EXT
= 25 ns).
CK
drive:
Table II. External Power Calculations (5 V Device)
Table III. External Power Calculations (3.3 V Device)
Pin# of%
TypePins Switching ⴛ Cⴛ fⴛ V
Address1550× 44.7 pF × 10 MHz × 10.9 V = 0.037 W
MS010× 44.7 pF × 10 MHz × 10.9 V = 0.000 W
WR1–× 44.7 pF × 20 MHz × 10.9 V = 0.010 W
Data3250× 14.7 pF × 10 MHz × 10.9 V = 0.026 W
ADDRCLK 1–× 4.7 pF× 20 MHz × 10.9 V = 0.001 W
2
DD
= 0.074 W
P
EXT
= P
EXT
A typical power consumption can now be calculated for these
conditions by adding a typical internal power dissipation:
P
= P
TOTAL
EXT
+ (I
Note that the conditions causing a worst-case P
from those causing a worst-case P
× 5.0 V )
DDIN2
. Maximum P
INT
are different
EXT
cannot
INT
occur while 100% of the output pins are switching from all ones
to all zeros. Note also that it is not common for an application to
have 100% or even 50% of the outputs switching simultaneously.
TEST CONDITIONS
Output Disable Time
Output pins are considered to be disabled when they stop driving, go into a high impedance state, and start to decay from
their output high or low voltage. The time for the voltage on the
bus to decay by ∆V is dependent on the capacitive load, C
the load current, I
. This decay time can be approximated by
L
and
L
the following equation:
C
∆V
t
DECAY
The output disable time t
and t
as shown in Figure 25. The time t
DECAY
DIS
L
=
I
L
is the difference between t
MEASURED
MEASURED
is the
interval from when the reference signal switches to when the
output voltage decays ∆V from the measured output high or
output low voltage. t
, and with ∆V equal to 0.5 V.
I
L
is calculated with test loads CL and
DECAY
Output Enable Time
Output pins are considered to be enabled when they have made
a transition from a high impedance state to when they start
driving. The output enable time t
is the interval from when a
ENA
reference signal reaches a high or low voltage level to when the
output has reached a specified high or low trip point, as shown
in the Output Enable/Disable diagram (Figure 25). If multiple
pins (such as the data bus) are enabled, the measurement value
is that of the first pin to start driving.
= 0.167 W
P
EXT
–40–
REV. B
Page 41
ADSP-21062/ADSP-21062L
Example System Hold Time Calculation
To determine the data output hold time in a particular system,
first calculate t
using the equation given above. Choose ∆V
DECAY
to be the difference between the ADSP-21062’s output voltage
and the input threshold for the device requiring the hold time. A
typical ∆V will be 0.4 V. C
data line), and I
is the total leakage or three-state current (per
L
data line). The hold time will be t
disable time (i.e., t
REFERENCE
SIGNAL
V
OH (MEASURED)
V
OL (MEASURED)
DATRWH
t
DIS
OUTPUT STOPS
DRIVING
is the total bus capacitance (per
L
plus the minimum
DECAY
for the write cycle).
t
MEASURED
V
OH (MEASURED)
V
OL (MEASURED)
t
DECAY
HIGH-IMPEDANCE STATE.
TEST CONDITIONS CAUSE
THIS VOLTAGE TO BE
APPROXIMATELY 1.5V
– DV
+ DV
t
ENA
2.0V
1.0V
OUTPUT STARTS
DRIVING
V
OH (MEASURED)
V
OL (MEASURED)
Figure 25. Output Enable/Disable
I
OL
TO
OUTPUT
PIN
50pF
I
OH
+1.5V
Figure 26. Equivalent Device Loading for AC Measurements (Includes All Fixtures)
Capacitive Loading
Output delays and holds are based on standard capacitive loads:
50 pF on all pins (see Figure 26). The delay and hold specifications given should be derated by a factor of 1.5 ns/50 pF for
loads other than the nominal value of 50 pF. Figures 29–30,
33–34 show how output rise time varies with capacitance. Figures 31, 35 show graphically how output delays and holds vary
with load capacitance. (Note that this graph or derating does
not apply to output disable delays; see the previous section
Output Disable Time under Test Conditions.) The graphs of
Figures 29, 30 and 31 may not be linear outside the ranges
shown.
INPUT OR
OUTPUT
1.5V
1.5V
Figure 27. Voltage Reference Levels for AC Measurements (Except Output Enable/Disable)
Figure 33. Typical Output Rise Time (10%–90% VDD) vs.
Load Capacitance (V
= 3.3 V)
DD
–42–
REV. B
Page 43
ADSP-21062/ADSP-21062L
9
8
7
6
5
4
3
2
RISE AND FALL TIMES – ns (0.8V – 2.0V)
1
0020 406080 100 120
Y = 0.0391X + 0.36
RISE TIME
FALL TIME
LOAD CAPACITANCE – pF
Y = 0.0305X + 0.24
140 160 180 200
Figure 34. Typical Output Rise Time (0.8 V–2.0 V) vs.
Load Capacitance (V
5
4
3
2
1
OUTPUT DELAY OR HOLD – ns
NOMINAL
–1
252005075100125150175
= 3.3 V)
DD
Y = 0.0329X –1.65
LOAD CAPACITANCE – pF
Figure 35. Typical Output Delay or Hold vs. Load Capacitance (at Maximum Case Temperature) (V
= 3.3 V)
DD
ENVIRONMENTAL CONDITIONS
Thermal Characteristics
The ADSP-21062 is available in 240-lead thermally enhanced
MQFP and 225-lead plastic ball grid array packages. The top
surface of the thermally enhanced MQFP contains a copper slug
from which most of the die heat is dissipated. The slug is flush
with the top surface of the package. Note that the copper slug is
internally connected to GND through the device substrate.
Both packages are specified for a case temperature (T
ensure that the T
is not exceeded, a heatsink and/or an air
CASE
CASE
). To
flow source may be used. A heatsink should be attached with a
thermal adhesive.
T
CASE = TAMB +
T
= Case temperature (measured on top surface of package)
CASE
( PD ×
θ
)
CA
PD =Power dissipation in W (this value depends upon the
specific application; a method for calculating PD is
shown under Power Dissipation).
THE THERMALLY ENHANCED MQFP PACKAGE CONTAINS A
COPPER HEAT SLUG FLUSH WITH ITS TOP SURFACE; THE
SLUG IS INTERNALLY CONNECTED TO GROUND. THE HEAT
SLUG DIAMETER IS 24.1 (0.949) mm.
NOTE:
THE ACTUAL POSITION OF EACH LEAD IS WITHIN (0.08)
0.0032 FROM ITS IDEAL POSITION WHEN MEASURED IN THE
LATERAL DIRECTION.
CENTER FIGURES ARE TYPICAL UNLESS OTHERWISE NOTED.
INCHES (MILLIMETERS)
121
12061
ORDERING GUIDE
CaseInstructionOn-ChipOperatingPackage
Part NumberTemperature RangeRate SRAMVoltageOptions
ADSP-21062KS-1330°C to +85°C33 MHz2 Mbit5 VMQFP
ADSP-21062KS-1600°C to +85°C40 MHz2 Mbit5 VMQFP
ADSP-21062KB-1600°C to +85°C40 MHz2 Mbit5 VPBGA
ADSP-21062CS-160–40°C to +100°C40 MHz2 Mbit5 VMQFP
ADSP-21062LKS-1330°C to +85°C33 MHz2 Mbit3.3 VMQFP
ADSP-21062LKS-1600°C to +85°C40 MHz2 Mbit3.3 VMQFP
ADSP-21062LKB-1600°C to +85°C40 MHz2 Mbit3.3 VPBGA
ADSP-21062LAB-160–40°C to +85°C40 MHz2 Mbit3.3 VPBGA
ADSP-21062LCS-160–40°C to +100°C40 MHz2 Mbit3.3 VMQFP
PRINTED IN U.S.A.
–48–
REV. B
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