參數(shù)資料
型號： XE8807AMI026TLF
廠商： Semtech
文件頁數(shù)： 28/143頁
文件大?。?/td> 0K
描述： IC MCU LOW PWR MTP FLASH 32-TQFP
標準包裝： 1
系列： XE880x
應用： 感測機
核心處理器： Coolrisc816?
程序存儲器類型： 閃存（11 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： 32-TQFP
包裝： 標準包裝
供應商設(shè)備封裝： 32-TQFP（7x7）
產(chǎn)品目錄頁面： 585 (CN2011-ZH PDF)
配用： XE8000MP-ND - PROG BOARD AND PROSTART2 CARD
其它名稱： XE8807AMI026DKR
Semtech 2006
www.semtech.com
17-2
XE8806A/XE8807A
17.1
Features
-
4 x 8-bits timer/counter modules or 2 x 16-bits timers/counter modules
-
Each with 4 possible clock sources
-
Up/down counter modes
-
Interrupt and event generation
-
Capture function (internal or external source)
-
Rising, falling or both edge of capture signal (except for xtal 32 kHz, only rising edge)
-
PA[3:0] can be used as clock inputs (debounced or direct, frequency divided by 2 or not)
-
2 x 8 bits PWM or 2 x 16 bits PWM
-
PWM resolution of 8, 10, 12, 14 or 16 bits
-
Complex mode combinations are possible
17.2
Overview
Counter A and Counter B are 8-bits counters and can be combined to form a 16-bit counter. Counter C and
Counter D exhibit the same feature.
The counters can also be used to generate two PWM outputs on PB[0] and PB[1]. In PWM mode one can generate
PWM functions with 8, 10, 12, 14 or 16 bits wide counters.
The counters A and B can be captured by events on an internal or an external signal. The capture can be
performed on both 8-bit counters running individually on two different clock sources or on both counters chained to
form a 16-bit counter. In any case, the same capture signal is used for both counters.
When the counters A and B are not chained, they can be used in several configurations: A and B as counters, A
and B as captured counters, A as PWM and B as counter, A as PWM and B as captured counter.
When the counters C and D are not chained, they can be used either both as counters or counter C as PWM and
counter D as counter.
17.3
Register map
register name
RegCntA
RegCntB
RegCntC
RegCntD
RegCntCtrlCk
RegCntConfig1
RegCntConfig2
RegCntOn
Table 17-1. Counter Registers
bit
RegCntA
rw
reset
function
7-0
CounterA
R
00000000 nresetglobal
8-bits counter value
7-0
CounterA
W
00000000 nresetglobal
8-bits comparison value
Table 17-2. RegCntA
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