參數(shù)資料
型號: DSP56004FJ81
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: SYMPHONY AUDIO DSP FAMILY 24-BIT DIGITAL SIGNAL PROCESSORS
中文描述: Symphony音頻DSP系列的24位數(shù)字信號處理器
文件頁數(shù): 14/82頁
文件大?。?/td> 636K
代理商: DSP56004FJ81
1-8
DSP56004/D, Rev. 3
For More Information On This Product,
Go to: www.freescale.com
MOTOROLA
Signal/Connection Descriptions
Interrupt and Mode Control
MODB
IRQB
Input
Input (MODB)
Mode Select B
—This input signal has two functions:
to work with the MODA and MODC signals to select
the DSP’s initial operating mode, and
to allow an external device to request a DSP
interrupt after internal synchronization.
MODB is read and internally latched in the DSP when the
processor exits the Reset state. The logic state present on the
MODA, MODB, and MODC pins selects the initial DSP
operating mode. Several clock cycles after leaving the Reset
state, the MODB signal changes to the external interrupt
request IRQB. The DSP operating mode can be changed by
software after reset.
External Interrupt Request
B (IRQB
)—The IRQB input is a
synchronized external interrupt request. It may be
programmed to be level-sensitive or negative-edge-
triggered. When the signal is edge-triggered, triggering
occurs at a voltage level and is not directly related to the fall
time of the interrupt signal. However, as the fall time of the
interrupt signal increases, the probability that noise on IRQB
will generate multiple interrupts also increases. Hardware
reset causes this input to function as MODB.
Table 1-7
Interrupt and Mode Control Signals (Continued)
Signal Name
Signal
Type
State during
Reset
Signal Description
F
Freescale Semiconductor, Inc.
n
.
相關PDF資料
PDF描述
DSP56004ROM SYMPHONY AUDIO DSP FAMILY 24-BIT DIGITAL SIGNAL PROCESSORS
DSP56721 SymphonyTM DSP56720 / DSP56721 Multi-Core Audio Processors
DSPA56720AG SymphonyTM DSP56720 / DSP56721 Multi-Core Audio Processors
DSPA56721AF SymphonyTM DSP56720 / DSP56721 Multi-Core Audio Processors
DSPA56721AG SymphonyTM DSP56720 / DSP56721 Multi-Core Audio Processors
相關代理商/技術參數(shù)
參數(shù)描述
DSP56004ROM 制造商:FREESCALE 制造商全稱:Freescale Semiconductor, Inc 功能描述:SYMPHONY AUDIO DSP FAMILY 24-BIT DIGITAL SIGNAL PROCESSORS
DSP56004UM 制造商:未知廠家 制造商全稱:未知廠家 功能描述:DSP56004 24-Bit Digital Signal Processor User's Manual Revision 1
DSP56004UM/AD 制造商:FREESCALE 制造商全稱:Freescale Semiconductor, Inc 功能描述:SYMPHONY AUDIO DSP FAMILY 24-BIT DIGITAL SIGNAL PROCESSORS
DSP56005DS 制造商:未知廠家 制造商全稱:未知廠家 功能描述:DSP56005 24-Bit Digital Signal Processor Datasheet
DSP56005UM 制造商:未知廠家 制造商全稱:未知廠家 功能描述:DSP56005 24-Bit Digital Signal Processor User's Manual