參數(shù)資料
型號： ST92E141K4D1
廠商： STMICROELECTRONICS
元件分類： 微控制器/微處理器
英文描述： 16-BIT, UVPROM, 25 MHz, MICROCONTROLLER, CDIP32
封裝： WINDOWED, SHRINK, CERAMIC, DIP-32
文件頁數(shù)： 58/178頁
文件大?。?/td> 1097K
代理商： ST92E141K4D1
150/178
ST92141 - ANALOG TO DIGITAL CONVERTER (ADC)
ANALOG TO DIGITAL CONVERTER (Cont’d)
Figure 79. Application Example: Analog Watchdog used in Motorspeed Control
7.6.3 Interrupts
The ADC provides two interrupt sources:
– End of Conversion
– Analog Watchdog Request
The A/D Interrupt Vector Register (IVR) provides
hardware generated flags which indicate the inter-
rupt source, thus allowing automatic selection of
the correct interrupt service routine.
The A/D Interrupt vector should be programmed
by the User to point to the first memory location in
the Interrupt Vector table containing the base ad-
dress of the four byte area of the interrupt vector
table in which the address of the A/D interrupt
service routines are stored.
The Analog Watchdog Interrupt Pending bit (AWD,
ICR.6), is automatically set by hardware whenever
any of the two guarded analog inputs go out of
range. The Compare Result Register (CRR) tracks
the analog inputs which exceed their programmed
thresholds.
When two requests occur simultaneously, the An-
alog Watchdog Request has priority over the End
of Conversion request, which is held pending.
The Analog Watchdog Request requires the user
to poll the Compare Result Register (CRR) to de-
termine which of the four thresholds has been ex-
ceeded. The threshold status bits are set to flag an
out of range condition, and are automatically reset
by hardware after a software reset of the Analog
Watchdog Request flag in the ICR Register. The
interrupt pending flags, ECV and AWD, should be
reset by the user within the interrupt service rou-
tine. Setting either of these two bits by software
will cause an interrupt request to be generated.
Analog
Watch-
dog Re-
quest
70
Lower
Word
Address
X
XX
0
End of
Conv.
Request
70
Upper
Word
Address
X
XX
1
0
9
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ST92E163-EPB/US 功能描述:程序設計器 - 基于處理器 ST9 EPROM Programmer RoHS:否 制造商:Olimex Ltd. 產(chǎn)品:Programmers 工具用于評估:XMEGA, MegaAVR, tinyAVR 核心:AVR 接口類型:USB 工作電源電壓:1.8 V to 5.5 V
ST92F120-EPB/US 功能描述:可擦除可編程ROM ST9 可擦除可編程ROM PROG RoHS:否 制造商:Maxim Integrated 類型: 存儲容量:1024 bit 組織:1 K x 1 接口類型: 工作電流:5 uA 編程電壓: 工作電源電壓:2.8 V to 6 V 最大工作溫度:+ 85 C 安裝風格:Through Hole 封裝 / 箱體:TO-92
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ST92F120V9Q7 功能描述:8位微控制器 -MCU RO 511-ST92F150CV1QB 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
ST92F124R9TB 功能描述:8位微控制器 -MCU Flash 64K SCI/SPI/I2 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
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