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參數(shù)資料
| 型號： | ADSP-2188MBSTZ-266 |
| 廠商： | Analog Devices Inc |
| 文件頁數(shù)： | 10/40頁 |
| 文件大?。?/td> | 0K |
| 描述： | IC DSP CONTROLLER 16BIT 100LQFP |
| 標(biāo)準(zhǔn)包裝： | 1 |
| 系列： | ADSP-21xx |
| 類型： | 定點(diǎn) |
| 接口： | 主機(jī)接口，串行端口 |
| 時鐘速率： | 66MHz |
| 非易失內(nèi)存： | 外部 |
| 芯片上RAM： | 256kB |
| 電壓 - 輸入/輸出： | 3.30V |
| 電壓 - 核心： | 2.50V |
| 工作溫度： | -40°C ~ 85°C |
| 安裝類型： | 表面貼裝 |
| 封裝/外殼： | 100-LQFP |
| 供應(yīng)商設(shè)備封裝： | 100-LQFP（14x14） |
| 包裝： | 托盤 |
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REV. 0
–18–
ADSP-2188M
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
emulator, 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 tim-
ing requirements and switching characteristics as specified in
this 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. Depend-
ing on the severity of the specification violation, you may have
trouble manufacturing your system as DSP components statisti-
cally vary in switching characteristic and timing requirements
within published limits.
Restriction: All memory strobe signals on the ADSP-2188M
(
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 change. 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
between your target circuitry and the DSP on the
RESET
signal.
EZ-ICE emulation introduces an 8 ns propagation delay
between 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.
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