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| 型号： | DM164120-1 |
| 厂商： | Microchip Technology |
| 文件页数： | 24/42页 |
| 文件大小： | 0K |
| 描述： | BOARD DEMO PICKIT 2 LP COUNT |
| 标准包装： | 1 |
| 系列： | PICkit™ |
| 类型： | MCU |
| 适用于相关产品： | 28 引脚 PIC16C、16F、18C、18F |
| 所含物品： | 3 个板（1 个装有元件的板，2 个裸板） |
| 产品目录页面： | 659 (CN2011-ZH PDF) |
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Low Pin Count Demo Board User’s Guide
3.2.4.1
ADCON1
ADCON1 selects the ratio between processor clock speed and conversion speed. This
is important because the ADC needs at least 1.6 μ s per bit. Accuracy degrades if the
clock speed is too high. As the processor clock speed increases, an increasingly large
divider is necessary to keep the conversion speed. Four MHz is fastest at 8:1 ratio with
a conversion speed of 2 μ s per bit. Refer to the “T AD vs. Device Operating
Frequencies” Table in the Analog-to-Digital Section of the PIC16F685/687/689/690
Data Sheet (DS41262) for recommended configurations.
REGISTER 3-1:
ADCON1 – A/D CONTROL REGISTER 1 (ADDRESS: 9Fh)
U-0
—
R/W-0
ADCS2
R/W-0
ADCS1
R/W-0
ADCS0
U-0
—
U-0
—
U-0
—
U-0
—
bit 7
bit 0
bit 7
bit 6-4
bit 3-0
Unimplemented: Read as ‘ 0 ’
ADCS<2:0>: A/D Conversion Clock Select bits
000 = F OSC /2
001 = F OSC /8
010 = F OSC /32
x11 = F RC (clock derived from a dedicated internal oscillator = 500 kHz max)
100 = F OSC /4
101 = F OSC /16
110 = F OSC /64
Unimplemented: Read as ‘ 0 ’
Legend:
R = Readable bit
W = Writable bit
U = Unimplemented bit, read as ‘0’
- n = Value at POR
‘1’ = Bit is set
‘0’ = Bit is cleared
x = Bit is unknown
DS51556A-page 20
? 2005 Microchip Technology Inc.
相关PDF资料 |
PDF描述 |
|---|---|
| DM164120-3 | BOARD DEMO PICKIT2 28-PIN |
| DM164120-5 | BOARD DEMO PICKIT 2 64/80-PIN |
| DM164123 | KIT MANAGEMENT SYSTEM PICDEM |
| DM180021 | KIT STARTER MPLAB FOR PIC18F MCU |
| DM183022 | BOARD DEMO PIC18FXX22 64/80TQFP |
相关代理商/技术参数 |
参数描述 |
|---|---|
| DM164120-1 | 制造商:Microchip Technology Inc 功能描述:DEVELOPMENT TOOLS - PICKIT 2 LOW PIN COU |
| DM164120-2 | 功能描述:开发板和工具包 - PIC / DSPIC PICkit 2 44-Pin Count Demo Brd RoHS:否 制造商:Microchip Technology 产品:Starter Kits 工具用于评估:chipKIT 核心:Uno32 接口类型: 工作电源电压: |
| DM164120-3 | 功能描述:开发板和工具包 - PIC / DSPIC PICkit 2 Count Demo Board RoHS:否 制造商:Microchip Technology 产品:Starter Kits 工具用于评估:chipKIT 核心:Uno32 接口类型: 工作电源电压: |
| DM164120-4 | 功能描述:开发板和工具包 - PIC / DSPIC PICkit 2 1 Dem Board RoHS:否 制造商:Microchip Technology 产品:Starter Kits 工具用于评估:chipKIT 核心:Uno32 接口类型: 工作电源电压: |
| DM164120-4 | 制造商:Microchip Technology Inc 功能描述:PICkit 2 18-Pin Demo Board |
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