參數(shù)資料
型號: C8051F300DK
廠商: Silicon Laboratories Inc
文件頁數(shù): 119/178頁
文件大小: 0K
描述: DEV KIT F300/301/302/303/304/305
標準包裝: 1
類型: MCU
適用于相關產(chǎn)品: Silicon Laboratories C8051 F300/001/002
所含物品: 評估板,電源,USB 線纜,適配器和文檔
產(chǎn)品目錄頁面: 626 (CN2011-ZH PDF)
相關產(chǎn)品: 336-1535-5-ND - IC 8051 MCU 8K FLASH 14-SOIC
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其它名稱: 336-1246
Rev. 2.9
45
C8051F300/1/2/3/4/5
5.4.
Programmable Window Detector
The ADC Programmable Window Detector continuously compares the ADC0 output to user-programmed
limits, and notifies the system when a desired condition is detected. This is especially effective in an inter-
rupt-driven system, saving code space and CPU bandwidth while delivering faster system response times.
The window detector interrupt flag (AD0WINT in register ADC0CN) can also be used in polled mode. The
ADC0 Greater-Than (ADC0GT) and Less-Than (ADC0LT) registers hold the comparison values. Example
comparisons for Single-ended and Differential modes are shown in Figure 5.6 and Figure 5.7, respectively.
Notice that the window detector flag can be programmed to indicate when measured data is inside or out-
side of the user-programmed limits depending on the contents of the ADC0LT and ADC0GT registers.
5.4.1. Window Detector In Single-Ended Mode
Figure 5.6 shows two example window comparisons for Single-ended mode, with ADC0LT = 0x20 and
ADC0GT = 0x10. Notice that in Single-ended mode, the codes vary from 0 to VREF x (255/256) and are
represented as 8-bit unsigned integers. In the left example, an AD0WINT interrupt will be generated if the
ADC0
conversion
word
(ADC0)
is
within
the
range
defined
by
ADC0GT
and
ADC0LT
(if 0x10
ADC0 0x20). In the right example, and AD0WINT interrupt will be generated if ADC0 is outside
of the range defined by ADC0GT and ADC0LT (if ADC0
0x10 or ADC0 0x20).
0xFF
0x21
0x20
0x1F
0x11
0x10
0x0F
0x00
0
Input Voltage
(P0.x - GND)
REF x (255/256)
REF x (32/256)
REF x (16/256)
AD0WINT=1
AD0WINT
not affected
AD0WINT
not affected
ADC0LT
ADC0GT
0xFF
0x21
0x20
0x1F
0x11
0x10
0x0F
0x00
0
Input Voltage
(P0.x - GND)
REF x (255/256)
REF x (32/256)
REF x (16/256)
AD0WINT
not affected
ADC0GT
ADC0LT
AD0WINT=1
ADC0
Figure 5.6. ADC Window Compare Examples, Single-Ended Mode
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C8051F300DK-A 功能描述:DEV KIT FOR F300/301/302/304/305 RoHS:否 類別:編程器,開發(fā)系統(tǒng) >> 過時/停產(chǎn)零件編號 系列:- 標準包裝:1 系列:- 類型:MCU 適用于相關產(chǎn)品:Freescale MC68HC908LJ/LK(80-QFP ZIF 插口) 所含物品:面板、纜線、軟件、數(shù)據(jù)表和用戶手冊 其它名稱:520-1035
C8051F300DK-B 功能描述:DEV KIT FOR F300/301/302/304/305 RoHS:否 類別:編程器,開發(fā)系統(tǒng) >> 過時/停產(chǎn)零件編號 系列:- 標準包裝:1 系列:- 類型:MCU 適用于相關產(chǎn)品:Freescale MC68HC908LJ/LK(80-QFP ZIF 插口) 所含物品:面板、纜線、軟件、數(shù)據(jù)表和用戶手冊 其它名稱:520-1035
C8051F300DK-E 功能描述:DEV KIT FOR F300/301/302/304/305 RoHS:否 類別:編程器,開發(fā)系統(tǒng) >> 過時/停產(chǎn)零件編號 系列:- 標準包裝:1 系列:- 類型:MCU 適用于相關產(chǎn)品:Freescale MC68HC908LJ/LK(80-QFP ZIF 插口) 所含物品:面板、纜線、軟件、數(shù)據(jù)表和用戶手冊 其它名稱:520-1035
C8051F300DK-G 功能描述:8位微控制器 -MCU MCU DEVELOPMENT KIT W/ GLOBAL POWER SPLY RoHS:否 制造商:Silicon Labs 核心:8051 處理器系列:C8051F39x 數(shù)據(jù)總線寬度:8 bit 最大時鐘頻率:50 MHz 程序存儲器大小:16 KB 數(shù)據(jù) RAM 大小:1 KB 片上 ADC:Yes 工作電源電壓:1.8 V to 3.6 V 工作溫度范圍:- 40 C to + 105 C 封裝 / 箱體:QFN-20 安裝風格:SMD/SMT
C8051F300DK-H 功能描述:DEV KIT FOR F300/301/302/304/305 RoHS:否 類別:編程器,開發(fā)系統(tǒng) >> 過時/停產(chǎn)零件編號 系列:- 標準包裝:1 系列:- 類型:MCU 適用于相關產(chǎn)品:Freescale MC68HC908LJ/LK(80-QFP ZIF 插口) 所含物品:面板、纜線、軟件、數(shù)據(jù)表和用戶手冊 其它名稱:520-1035