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参数资料
型号： XE8806AMI026TLF
厂商： Semtech
文件页数： 101/143页
文件大小： 0K
描述： IC MCU LOW PWR MTP FLASH 32-TQFP
标准包装： 1
系列： XE880x
应用： 感测机
核心处理器： Coolrisc816?
程序存储器类型： 闪存（22 kB）
控制器系列： XE8000
RAM 容量： 512 x 8
接口： UART，USRT
输入/输出数： 24
电源电压： 2.4 V ~ 5.5 V
工作温度： -40°C ~ 85°C
安装类型： 表面贴装
封装/外壳： 32-TQFP
包装： 剪切带 (CT)
供应商设备封装： 32-TQFP（7x7）
配用： XE8000MP-ND - PROG BOARD AND PROSTART2 CARD
其它名称： XE8806AMI026CT
Semtech 2006
www.semtech.com
9-3
XE8806A/XE8807A
pos.
RegEvnEn
rw
reset
function
7
RegEvnEn[7]
rw
0 nresetglobal
1= enable event #7
6
RegEvnEn[6]
rw
0 nresetglobal
1= enable event #6
5
RegEvnEn[5]
rw
0 nresetglobal
1= enable event #5
4
RegEvnEn[4]
rw
0 nresetglobal
1= enable event #4
3
RegEvnEn[3]
rw
0 nresetglobal
1= enable event #3
2
RegEvnEn[2]
rw
0 nresetglobal
1= enable event #2
1
RegEvnEn[1]
rw
0 nresetglobal
1= enable event #1
0
RegEvnEn[0]
rw
0 nresetglobal
1= enable event #0
Table 9-3: RegEvnEn
pos.
RegEvnPriority
rw
reset
function
7-0
RegEvnPriority
r
11111111
nresetglobal
code of highest event set
FF if no event present.
Table 9-4: RegEvnPriority
pos.
RegEvnEvn
rw
reset
function
7-2
-
r
00000
unused
1
EvnHig
r
0 nresetglobal
one or more high priority event is
set
0
EvnLow
r
0 nresetglobal
one or more low priority event is
set
Table 9-5: RegEvnEvn
9.4
Detailed description
The CoolRISC core has 2 different event levels EV0 and EV1 (Figure 9-1).
The setting and clearing of these events can be done in the stat register (see chapter describing the CPU).
The event handler bundles a certain number of event sources and routes them to one of these two events and
provides the possibility to enable/disable each of them individually. The definition of the event sources is given in
the memory mapping chapter.
RegEvn is an 8-bit register containing flags for the event sources. Those flags are set when the event is enabled
(i.e. if the corresponding bit in the registers RegEvnEn is set) and a rising edge is detected on the corresponding
event source.
Once memorized, writing a ‘1’ in the corresponding bit of RegEvn clears an event flag. Writing a ‘0’ does not modify
the flag. All interrupts are automatically cleared after a reset.
Two registers are provided to facilitate the writing of event service software. RegEvnPriority contains the number
of the highest event set (its value is 0xFF when no event is memorized). RegEvnEvn indicates the priority level of
the current events.
All event sources are sampled by the highest frequency in the system. A CPU event is generated and memorized
when an event becomes high. The 8 event sources are divided into 2 levels of priority: High (4 event sources) and
Low (4 event sources). Those 2 levels of priority are directly mapped to those supported by the CoolRisc (EV0 and
EV1; see CoolRisc documentation for more information).
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相关代理商/技术参数
参数描述
XE8806ARI000 制造商:SEMTECH 制造商全称:Semtech Corporation 功能描述:Ultra Low-Power Low-Voltage
XE8806ARI026LF 制造商:SEMTECH 制造商全称:Semtech Corporation 功能描述:Ultra Low-Power Low-Voltage
XE8807AMI000 制造商:SEMTECH 制造商全称:Semtech Corporation 功能描述:Ultra Low-Power Low-Voltage
XE8807AMI026LF 制造商:SEMTECH 制造商全称:Semtech Corporation 功能描述:Ultra Low-Power Low-Voltage
XE8807AMI026TLF 功能描述:IC MCU LOW PWR MTP FLASH 32-TQFP RoHS:是 类别:集成电路 (IC) >> 嵌入式 - 微控制器 - 特定应用 系列:XE880x 产品变化通告:Product Discontinuation 26/Aug/2009 标准包装:250 系列:- 应用:网络处理器 核心处理器:4Kc 程序存储器类型:- 控制器系列:- RAM 容量:16K x 8 接口:以太网，UART，USB 输入/输出数:- 电源电压:1.8V, 3.3V 工作温度:- 安装类型:表面贴装 封装/外壳:208-LQFP 包装:带卷 (TR) 供应商设备封装:PG-LQFP-208 其它名称:SP000314382
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