參數(shù)資料
型號(hào)： XE8805AMI028LF
廠商： Semtech
文件頁數(shù)： 105/156頁
文件大?。?/td> 0K
描述： IC DAS 16BIT FLASH 8K MTP 64LQFP
標(biāo)準(zhǔn)包裝： 160
系列： XE880x
應(yīng)用： 感測(cè)機(jī)
核心處理器： Coolrisc816?
程序存儲(chǔ)器類型： 閃存（22 kB）
控制器系列： XE8000
RAM 容量： 512 x 8
接口： UART，USRT
輸入/輸出數(shù)： 24
電源電壓： 2.4 V ~ 5.5 V
工作溫度： -40°C ~ 85°C
安裝類型： 表面貼裝
封裝/外殼： 64-LQFP
包裝： 托盤
供應(yīng)商設(shè)備封裝： 64-LQFP（10x10）
產(chǎn)品目錄頁面： 585 (CN2011-ZH PDF)
配用： XE8000MP-ND - PROG BOARD AND PROSTART2 CARD
Semtech 2006
www.semtech.com
8-2
XE8805/05A
8.1
Features
The XE8000 chips support 24 interrupt sources, divided into 3 levels of priority.
8.2
Overview
A CPU interruption is generated and memorized when an interrupt becomes active. The 24 interrupt sources are
divided into 3 levels of priority: High (8 interrupt sources), Mid (8 interrupt sources), and Low (8 interrupt sources).
Those 3 levels of priority are directly mapped to those supported by the CoolRisc (IN0, IN1 and IN2; see
CoolRisc documentation for more information).
RegIrqHig, RegIrqMid, and RegIrqLow are 8-bit registers containing flags for the interrupt sources. Those flags
are set when the interrupt is enabled (i.e. if the corresponding bit in the registers RegIrqEnHig, RegIrqEnMid or
RegIrqEnLow is set) and a rising edge is detected on the corresponding interrupt source.
Once memorized, an interrupt flag can be cleared by writing a ‘1’ in the corresponding bit of RegIrqHig, RegIrqMid
or RegIrqLow. Writing a ‘0’ does not modify the flag. To definitively clear the interrupt, one has to clear the
CoolRisc interrupt in the CoolRisc status register. All interrupts are automatically cleared after a reset.
Two registers are provided to facilitate the writing of interrupt service software. RegIrqPriority contains the number
of the highest priority interrupt set (its value is 0xFF when no interrupt is set). RegIrqIrq indicates the priority level
of the current interrupts. RegIrqIrq and RegIrqPriority ‘s values are dependent upon the memorized state of the
interrupts (as reflected in flags in RegIrqHig, RegIrqMid and RegIrqLow).
8.3
Register map
pos.
RegIrqHig
rw
reset
function
7
RegIrqHig[7]
r
c1
0 resetsystem
interrupt #23 (high priority)
clear interrupt #23 when 1 is written
6
RegIrqHig[6]
r
c1
0 resetsystem
interrupt #22 (high priority)
clear interrupt #22 when 1 is written
5
RegIrqHig[5]
r
c1
0 resetsystem
interrupt #21 (high priority)
clear interrupt #21 when 1 is written
4
RegIrqHig[4]
r
c1
0 resetsystem
interrupt #20 (high priority)
clear interrupt #20 when 1 is written
3
RegIrqHig[3]
r
c1
0 resetsystem
interrupt #19 (high priority)
clear interrupt #19 when 1 is written
2
RegIrqHig[2]
r
c1
0 resetsystem
interrupt #18 (high priority)
clear interrupt #18 when 1 is written
1
RegIrqHig[1]
r
c1
0 resetsystem
interrupt #17 (high priority)
clear interrupt #17 when 1 is written
0
RegIrqHig[0]
r
c1
0 resetsystem
interrupt #16 (high priority)
clear interrupt #16 when 1 is written
Table 8-1: RegIrqHig
Not
Recommended
for
New
Designs
相關(guān)PDF資料
PDF描述
XE8807AMI026TLF IC MCU LOW PWR MTP FLASH 32-TQFP
XIO2200AGGW IC PCI-EXPRESS/BUS BRIDGE 176BGA
XIO2200AZGW IC PCI-EXPRESS/BUS BRIDGE 176BGA
XPC823ZT81B2T IC MPU POWERQUICC 81MHZ 256-PBGA
XPC8240RZU250E MCU HOST PROCESSOR 352-TBGA
相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
XE8805AMI028TLF 制造商:Semtech Corporation 功能描述:
XE8805MI028 制造商:SEMTECH 制造商全稱:Semtech Corporation 功能描述:Data Acquisition MCU
XE8806A 制造商:SEMTECH 制造商全稱:Semtech Corporation 功能描述:Ultra Low-Power Low-Voltage
XE8806AMI000 制造商:SEMTECH 制造商全稱:Semtech Corporation 功能描述:Ultra Low-Power Low-Voltage
XE8806AMI026LF 制造商:SEMTECH 制造商全稱:Semtech Corporation 功能描述:Ultra Low-Power Low-Voltage
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

*
*
*