參數(shù)資料
型號: TOOLSTICK300DC
廠商: Silicon Laboratories Inc
文件頁數(shù): 114/178頁
文件大?。?/td> 0K
描述: TOOLSTICK DAUGHTER CARD
標準包裝: 1
系列: ToolStick
類型: MCU
適用于相關產(chǎn)品: C8051F300
所含物品: 子卡
C8051F300/1/2/3/4/5
40
Rev. 2.9
5.3.2. Tracking Modes
According to Table 5.1 on page 47, each ADC0 conversion must be preceded by a minimum tracking time
for the converted result to be accurate. The AD0TM bit in register ADC0CN controls the ADC0 track-and-
hold mode. In its default state, the ADC0 input is continuously tracked except when a conversion is in prog-
ress. When the AD0TM bit is logic 1, ADC0 operates in low-power track-and-hold mode. In this mode,
each conversion is preceded by a tracking period of 3 SAR clocks (after the start-of-conversion signal).
When the CNVSTR signal is used to initiate conversions in low-power tracking mode, ADC0 tracks only
when CNVSTR is low; conversion begins on the rising edge of CNVSTR (see Figure 5.4). Tracking can
also be disabled (shutdown) when the device is in low power standby or sleep modes. Low-power track-
and-hold mode is also useful when AMUX or PGA settings are frequently changed, due to the settling time
Write '1' to AD0BUSY,
Timer 0, Timer 2, Timer 1 Overflow
(AD0CM[2:0]=000, 001, 010, 011)
AD0TM=1
Track
Convert
Low Power
Mode
AD0TM=0
Track or
Convert
Track
Low Power
or Convert
SAR
Clocks
SAR
Clocks
B. ADC Timing for Internal Trigger Source
12
34567
89
CNVSTR
(AD0CM[2:0]=1xx)
AD0TM=1
A. ADC Timing for External Trigger Source
SAR Clocks
Track or Convert
Convert
Track
AD0TM=0
Track
Convert
Low Power
Mode
Low Power
or Convert
10
11 12
12
34567
89
10
11 12
123
45678
9
10
11 12
13
14 15
Figure 5.4. 8-Bit ADC Track and Conversion Example Timing
相關PDF資料
PDF描述
TOOLSTICK411DC TOOLSTICK DAUGHTER CARD
TOOLSTICK336DC DAUGHTER CARD TOOLSTICK C8051F33
SDR-2 SCOTCH CODE REFILL # 2
0210490198 CABLE JUMPER 1.25MM .127M 14POS
RSM08DRTH CONN EDGECARD 16POS DIP .156 SLD
相關代理商/技術參數(shù)
參數(shù)描述
TOOLSTICK300PP 功能描述:插座和適配器 Dev Tool for C8051F30X MCUs RoHS:否 制造商:Silicon Labs 產(chǎn)品:Adapter 用于:EM35x
TOOLSTICK300SPP 功能描述:插座和適配器 TS for F300-F305 SOIC 14 MCUs RoHS:否 制造商:Silicon Labs 產(chǎn)品:Adapter 用于:EM35x
TOOLSTICK310PP 功能描述:插座和適配器 C8051F310/12/14 F361 F364 F366 F368 RoHS:否 制造商:Silicon Labs 產(chǎn)品:Adapter 用于:EM35x
TOOLSTICK311DC 功能描述:子卡和OEM板 ToolStick C8051F311 Daughter Card RoHS:否 制造商:BeagleBoard by CircuitCo 產(chǎn)品:BeagleBone LCD4 Boards 用于:BeagleBone - BB-Bone - Open Source Development Kit
TOOLSTICK311PP 功能描述:插座和適配器 C8051F311/13/15 F362 F365 F367 F369 RoHS:否 制造商:Silicon Labs 產(chǎn)品:Adapter 用于:EM35x