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參數(shù)資料
| 型號： | ADSP-2187LKST-160 |
| 廠商： | ANALOG DEVICES INC |
| 元件分類： | 數(shù)字信號處理 |
| 英文描述： | DSP Microcomputer |
| 中文描述： | 24-BIT, 26.3 MHz, OTHER DSP, PQFP100 |
| 封裝： | MS-026BED, LQFP-100 |
| 文件頁數(shù)： | 14/32頁 |
| 文件大?。?/td> | 223K |
| 代理商： | ADSP-2187LKST-160 |
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REV. 0
ADSP-2187L
–14–
Target Board Connector for EZ-ICE Probe
The EZ-ICE connector (a standard pin strip header) is shown in
Figure 11. You must add this connector to your target board
design if you intend to use the EZ-ICE. Be sure to allow enough
room in your system to fit the EZ-ICE probe onto the 14-pin
connector.
3
9
1
2
3
4
5
6
7
8
10
11
12
13
14
GND
KEY (NO PIN)
RESET
BR
BG
TOP VIEW
EBG
EBR
ELOUT
EE
EINT
ELIN
ECLK
EMS
ERESET
Figure 11. Target Board Connector for EZ-ICE
The 14-pin, 2-row pin strip header is keyed at the Pin 7 loca-
tion—you must remove Pin 7 from the header. The pins must
be 0.025 inch square and at least 0.20 inch in length. Pin spac-
ing should be 0.1
×
0.1 inches. The pin strip header must have
at least 0.15 inch clearance on all sides to accept the EZ-ICE
probe plug.
Pin strip headers are available from vendors such as 3M,
McKenzie and Samtec.
Target Memory Interface
For your target system to be compatible with the EZ-ICE
emu-
lator, it must comply with the memory interface guidelines listed
below.
PM, DM, BM, IOM and CM
Design your Program Memory (PM), Data Memory (DM),
Byte Memory (BM), I/O Memory (IOM) and Composite
Memory (CM) external interfaces to comply with worst case
device timing requirements and switching characteristics as
specified in the DSP’s data sheet. The performance of the
EZ-ICE
may approach published worst case specification for
some memory access timing requirements and switching
characteristics.
Note:
If your target does not meet the worst case chip specifica-
tion for memory access parameters, you may not be able to
emulate your circuitry at the desired CLKIN frequency. De-
pending on the severity of the specification violation, you may
have trouble manufacturing your system as DSP components
statistically vary in switching characteristic and timing require-
ments within published limits.
Restriction:
All memory strobe signals on the ADSP-2187L
(
RD
,
WR
,
PMS
,
DMS
,
BMS
,
CMS
and
IOMS
) used in your
target system must have 10 k
pull-up resistors connected when
the EZ-ICE is being used. The pull-up resistors are necessary
because there are no internal pull-ups to guarantee their state
during prolonged three-state conditions resulting from typical
EZ-ICE debugging sessions. These resistors may be removed at
your option when the EZ-ICE is not being used.
Target System Interface Signals
When the EZ-ICE
board is installed, the performance on some
system signals changes. Design your system to be compatible
with the following system interface signal changes introduced by
the EZ-ICE
board:
EZ-ICE
emulation introduces an 8 ns propagation delay be-
tween your target circuitry and the DSP on the
RESET
signal.
EZ-ICE
emulation introduces an 8 ns propagation delay be-
tween your target circuitry and the DSP on the
BR
signal.
EZ-ICE
emulation ignores
RESET
and
BR
when single-
stepping.
EZ-ICE
emulation ignores
RESET
and
BR
when in Emulator
Space (DSP halted).
EZ-ICE
emulation ignores the state of target
BR
in certain
modes. As a result, the target system may take control of the
DSP’s external memory bus
only
if bus grant (
BG
) is asserted
by the EZ-ICE
board’s DSP.
相關(guān)PDF資料 |
PDF描述 |
|---|---|
| ADSP-2187LKST-210 | DSP Microcomputer |
| ADSP-2187LBST-160 | DSP Microcomputer |
| ADSP-2187LBST-210 | DSP Microcomputer |
| ADSP-2189MBST-266 | DSP Microcomputer |
| ADSP-2189NBCA-320 | DSP Microcomputer |
相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| ADSP2187LKST210 | 制造商:Analog Devices 功能描述: |
| ADSP-2187LKST-210 | 制造商:Analog Devices 功能描述:DSP Fixed-Point 16-Bit 52.5MHz 52.5MIPS 100-Pin LQFP 制造商:Rochester Electronics LLC 功能描述:16 BIT DSP 3.3V 52MHZ 64KWORDS RAM - Bulk |
| ADSP-2187LKSTZ-1602 | 制造商:AD 制造商全稱:Analog Devices 功能描述:DSP Microcomputer |
| ADSP-2187LKSTZ-210 | 制造商:Rochester Electronics LLC 功能描述: 制造商:Analog Devices 功能描述: |
| ADSP-2187LKSTZ-2102 | 制造商:AD 制造商全稱:Analog Devices 功能描述:DSP Microcomputer |
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