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參數(shù)資料
| 型號(hào)： | D950-CORE |
| 廠商： | 意法半導(dǎo)體 |
| 元件分類： | 數(shù)字信號(hào)處理 |
| 英文描述： | 16-Bit Fixed Point Digital Signal Processor DSP Core |
| 中文描述： | 16位定點(diǎn)數(shù)字信號(hào)處理器DSP核 |
| 文件頁數(shù)： | 31/89頁 |
| 文件大小： | 560K |
| 代理商： | D950-CORE |
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D950-Core
HOLD State
This function allows the release of the buses for another device such as a DMA controller (see
Section 6.3.6
).
Entering HOLD state
: The HOLD signal is sampled at the beginning of every cycle. When
HOLD is recognized low, the processor immediately releases the I-bus and then releases the
X and Y buses after execution of the currently decoded instruction. Bus address, data and
control lines are then tri-stated.
Program execution is stopped and HOLDACK is asserted low during HOLD state.
Note:HOLD state can not be entered when the processor is in emulation mode.
Exit of HOLD state
: The processor recovers bus mastership as soon as HOLD is sampled
high and next instruction is fetched.
HALT State
This function is used in emulation mode only. It is used to stop program execution by use of
the peripheral emulator unit (see
Section 7.5
).
4.3.8 Memory Moves with Wait States
DTACK input is used to stretch instruction cycles, in order to access slower memory and/or
peripherals. DTACK is sampled on the rising edge of CLKIN. If DTACK is high on the third
rising edge of the cycle, the cycle is extended by two CLKIN cycles (see
Section 6.3.4
).
Extension cycles are added by the clock generator until DTACK is recognized low.
Note:
DTACK
generation can be controlled by the Bus Switch Interface peripheral (see
Section 7.2
).
5
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相關(guān)代理商/技術(shù)參數(shù) |
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| D950N | 制造商:INFINEON 制造商全稱:Infineon Technologies AG 功能描述:Netz-Gleichrichterdiode Rectifier Diode |
| D950N18T | 功能描述:整流器 Rectifier Diode 950A 1800V RoHS:否 制造商:Vishay Semiconductors 產(chǎn)品:Standard Recovery Rectifiers 配置: 反向電壓:100 V 正向電壓下降: 恢復(fù)時(shí)間:1.2 us 正向連續(xù)電流:2 A 最大浪涌電流:35 A 反向電流 IR:5 uA 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:DO-221AC 封裝:Reel |
| D-951-10 | 制造商:MOLEX 制造商全稱:Molex Electronics Ltd. 功能描述:NylaKrimp? Funnel Entry Ring Tongue Terminal for 8 AWG Wire, Stud #5 |
| D-951-14 | 制造商:ETC MOLEX-INACTIVE 功能描述:Cross Referenced to MOLEX - Part: MOL19067-0018 |
| D-951-38 | 制造商:ETC MOLEX-INACTIVE 功能描述:Cross Referenced to MOLEX - Part: MOL19067-0022 |
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