參數(shù)資料
型號(hào)： NS32FX164V-25
廠商： NATIONAL SEMICONDUCTOR CORP
元件分類： 數(shù)字信號(hào)處理
英文描述： Advanced Imaging/Communication Signal Processors
中文描述： 16-BIT, 50 MHz, MIXED DSP, PQCC68
封裝： PLASTIC, LCC-68
文件頁(yè)數(shù)： 34/102頁(yè)
文件大?。?/td> 1053K
代理商： NS32FX164V-25
3.0 Functional Description
(Continued)
TL/EE/11267–21
FIGURE 3-8. Return from Interrupt (RETI) Instruction Flow:
Direct-Exception Mode Disabled
3.2.3 Maskable Interrupts
The INT pin is a level-sensitive input. A continuous low level
is allowed for generating multiple interrupt requests. The in-
put is maskable, and is therefore enabled to generate inter-
rupt requests only while the Processor Status Register I bit
is set. The I bit is automatically cleared during service of an
INT or NMI request, and is restored to its original setting
upon return from the interrupt service routine via the RETT
or RETI instruction.
The INT pin may be configured via the SETCFG instruction
as either Non-Vectored (CFG Register bit I
e
0) or Vec-
tored (bit I
e
1).
3.2.3.1 Non-Vectored Mode
In the Non-Vectored mode, an interrupt request on the INT
pin will cause an Interrupt Acknowledge bus cycle, but the
CPU will ignore any value read from the bus and use instead
a default vector of zero. This mode is useful for small sys-
tems in which hardware interrupt prioritization is unneces-
sary.
34
相關(guān)PDF資料
PDF描述
NS32FX200-20 System Controller(系統(tǒng)控制器)
NS32FV100FV System Controller
NS32FV100-20 System Controller(系統(tǒng)控制器)
NS32FV100-25 System Controller(系統(tǒng)控制器)
NS32FX100-15 System Controller(系統(tǒng)控制器)
相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
NS32FX200 制造商:未知廠家 制造商全稱:未知廠家 功能描述:
NS32FX200VF 制造商:NSC 制造商全稱:National Semiconductor 功能描述:System Controller
NS32FX200VF-25 制造商:Texas Instruments 功能描述:
NS32FX210 制造商:NSC 制造商全稱:National Semiconductor 功能描述:Facsimile/Data Modem Analog Front End (AFE)
NS32FX210J 制造商:NSC 制造商全稱:National Semiconductor 功能描述:Facsimile/Data Modem Analog Front End (AFE)
發(fā)布緊急采購(gòu)，3分鐘左右您將得到回復(fù)。

采購(gòu)需求

(若只采購(gòu)一條型號(hào)，填寫一行即可)

發(fā)布成功！您可以繼續(xù)發(fā)布采購(gòu)。也可以進(jìn)入我的后臺(tái)，查看報(bào)價(jià)

發(fā)布成功！您可以繼續(xù)發(fā)布采購(gòu)。也可以進(jìn)入我的后臺(tái)，查看報(bào)價(jià)

*型號(hào) *數(shù)量 廠商 批號(hào) 封裝
添加更多采購(gòu)

我的聯(lián)系方式

*
*
*