參數(shù)資料
型號: ADSP-21060KS-133
廠商: ANALOG DEVICES INC
元件分類: 數(shù)字信號處理
英文描述: ADSP-2106x SHARC DSP Microcomputer Family
中文描述: 48-BIT, 33.33 MHz, OTHER DSP, PQFP240
封裝: MS-029GA, MQFP-240
文件頁數(shù): 12/47頁
文件大?。?/td> 366K
代理商: ADSP-21060KS-133
–12–
ADSP-21060/ADSP-21060L
REV. D
SYSTEM
CLKIN
EMU
5k
*
TDI
TDO
5k
*
TDI
EMU
TMS
TRST
TCK
TDO
CLKIN
*
OPEN DRAIN DRIVER OR EQUIVALENT, i.e.,
TDI
TDO
TDI
TDO
TDI
TDO
TDI
TDO
TDI
TDO
Figure 7. JTAG Clocktree for Multiple ADSP-2106x Systems
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 mul-
tiple ADSP-21061 in a
synchronous
manner. If you do not need
these operations to occur synchronously on the multiple proces-
sors, 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 ADSP-
21061/ADSP-21061L processors and the CLKIN pin on the
EZ-ICE
header
must be minimal
. If the skew is too large, syn-
chronous operations may be off by one or more cycles between
processors. For synchronous multiprocessor operation TCK,
TMS, CLKIN and
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 num-
ber of ADSP-21061 (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 termina-
tion 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-
2100 Family JTAG EZ-ICE User’s Guide and Reference
.
相關PDF資料
PDF描述
ADSP-21060KS-160 ADSP-2106x SHARC DSP Microcomputer Family
ADSP-21060LKB-160 RES, 2.2 K SM CHIP 5% 50V 1/16 WATT, 0603
ADSP-21060LKS-133 ADSP-2106x SHARC DSP Microcomputer Family
ADSP-21060LKS-160 ADSP-2106x SHARC DSP Microcomputer Family
ADSP-21061KS-133 ADSP-2106x SHARC DSP Microcomputer Family
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ADSP-21060L 制造商:AD 制造商全稱:Analog Devices 功能描述:ADSP-2106x SHARC DSP Microcomputer Family