参数资料
型号: XE8805AMI028LF
厂商: Semtech
文件页数: 115/156页
文件大小: 0K
描述: IC DAS 16BIT FLASH 8K MTP 64LQFP
标准包装: 160
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: 64-LQFP
包装: 托盘
供应商设备封装: 64-LQFP(10x10)
产品目录页面: 585 (CN2011-ZH PDF)
配用: XE8000MP-ND - PROG BOARD AND PROSTART2 CARD
Semtech 2006
www.semtech.com
11-2
XE8805/05A
11.1 Features
Input port, 8 bits wide
Each bit can be set individually for debounced or direct input
Each bit can be set individually for pull-up or not
Each bit is an interrupt request source on the rising or falling edge
A system reset can be generated on an input pattern
PA[0] and PA[1] can generate two events for the CPU, individually maskable
PA[0] to PA[3] can be used as clock inputs for the counters/timers/PWM (product dependent)
PA[0] can be used to enable the RC oscillator
11.2 Overview
Port A is a general purpose 8 bit wide digital input port, with interrupt capability. Figure 11-1 shows its structure.
Figure 11-1:structure of Port A
VBat
1
0
resetfromporta
8x
RegPAPullup
RegPADebounce
RegPAIn
RegPACtrl
RegPAEdge
RegPARes1
RegPARes0
0
1
8x
1
00
01
11
10
0
interrupts
events
cntclocks
8
debounce
10
DebFast
(RegSysMisc(2))
256 Hz
8 kHz
8
Port A
8x
PAReset[x]
RC
Not
Recommended
for
New
Designs
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