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參數(shù)資料
| 型號： | DSP56364P |
| 廠商： | 飛思卡爾半導體(中國)有限公司 |
| 元件分類： | 數(shù)字信號處理 |
| 英文描述： | 24-Bit Audio Digital Signal Processor |
| 中文描述： | 24位音頻數(shù)字信號處理器 |
| 文件頁數(shù)： | 10/148頁 |
| 文件大小： | 1204K |
| 代理商： | DSP56364P |
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Interrupt and Mode Control
DSP56364 Technical Data, Rev. 4
2-6
Freescale Semiconductor
2.6
Interrupt and Mode Control
The interrupt and mode control signals select the chip’s operating mode as it comes out of hardware reset.
After RESET is deasserted, these inputs are hardware interrupt request lines.
Table 2-8 Interrupt and Mode Control
Signal Name
Type
State during
Reset
Signal Description
MODA/
IRQA
Input
Input
Mode Select A/External Interrupt Request A—
MODA/
IRQA
is an active-low
Schmitt-trigger input, internally synchronized to the internal system clock.
MODA/
IRQA
selects the initial chip operating mode during hardware reset and
becomes a level-sensitive or negative-edge-triggered, maskable interrupt request
input during normal instruction processing. MODA, MODB, and MODD select one
of 8 initial chip operating modes, latched into the OMR when the
RESET
signal
is deasserted. If
IRQA
is asserted synchronous to the internal system clock,
multiple processors can be re synchronized using the WAIT instruction and
asserting
IRQA
to exit the wait state. If the processor is in the stop standby state
and
IRQA
is asserted, the processor will exit the stop state.
This input is 5 V tolerant
.
MODB/
IRQB
Input
Input
Mode Select B/External Interrupt Request B—
MODB/
IRQB
is an active-low
Schmitt-trigger input, internally synchronized to the internal system clock.
MODB/
IRQB
selects the initial chip operating mode during hardware reset and
becomes a level-sensitive or negative-edge-triggered, maskable interrupt request
input during normal instruction processing. MODA, MODB, and MODD select one
of 8 initial chip operating modes, latched into OMR when the
RESET
signal is
deasserted. If
IRQB
is asserted synchronous to the internal system clock,
multiple processors can be re-synchronized using the WAIT instruction and
asserting
IRQB
to exit the wait state.
This input is 5 V tolerant.
MODD/
IRQD
Input
Input
Mode Select D/External Interrupt Request D
—MODD/
IRQD
is an active-low
Schmitt-trigger input, internally synchronized to the internal system clock.
MODD/
IRQD
selects the initial chip operating mode during hardware reset and
becomes a level-sensitive or negative-edge-triggered, maskable interrupt request
input during normal instruction processing. MODA, MODB, and MODD select one
of 8 initial chip operating modes, latched into OMR when the
RESET
signal is
deasserted. If
IRQD
is asserted synchronous to the internal system clock,
multiple processors can be re synchronized using the WAIT instruction and
asserting
IRQD
to exit the wait state.
This input is 5 V tolerant.
RESET
Input
Input
Reset—
RESET
is an active-low, Schmitt-trigger input. When asserted, the chip
is placed in the reset state and the internal phase generator is reset. The
Schmitt-trigger input allows a slowly rising input (such as a capacitor charging) to
reset the chip reliably. When the
RESET
signal is deasserted, the initial chip
operating mode is latched from the MODA, MODB, and MODD inputs. The
RESET
signal must be asserted during power up. A stable EXTAL signal must
be supplied before deassertionof
RESET
.
This input is 5 V tolerant
.
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相關代理商/技術參數(shù) |
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|---|---|
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| DSP56366P | 制造商:FREESCALE 制造商全稱:Freescale Semiconductor, Inc 功能描述:24-Bit Audio Digital Signal Processor |
| DSP56366UM | 制造商:FREESCALE 制造商全稱:Freescale Semiconductor, Inc 功能描述:24-Bit Audio Digital Signal Processor |
| DSP56367 | 制造商:未知廠家 制造商全稱:未知廠家 功能描述:Optoelectronic |
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