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| 型號(hào)： | PIC12F510_07 |
| 廠商： | Microchip Technology Inc. |
| 英文描述： | 8/14-Pin, 8-Bit Flash Microcontroller |
| 中文描述： | 8/14-Pin，8位閃存微控制器 |
| 文件頁(yè)數(shù)： | 55/116頁(yè) |
| 文件大?。?/td> | 907K |
| 代理商： | PIC12F510_07 |
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2007 Microchip Technology Inc.
Preliminary
DS41268C-page 53
PIC12F510/16F506
9.1.6
ANALOG CONVERSION RESULT
REGISTER
The ADRES register contains the results of the last
conversion. These results are present during the sam-
pling period of the next analog conversion process.
After the sampling period is over, ADRES is cleared
(=
0
). A ‘leading one’ is then right shifted into the
ADRES to serve as an internal conversion complete
bit. As each bit weight, starting with the MSB, is con-
verted, the leading one is shifted right and the con-
verted bit is stuffed into ADRES. After a total of 9 right
shifts of the ‘leading one’ have taken place, the conver-
sion is complete; the ‘leading one’ has been shifted out
and the GO/DONE bit is cleared.
If the GO/DONE bit is cleared in software during a con-
version, the conversion stops. The data in ADRES is
the partial conversion result. This data is valid for the bit
weights that have been converted. The position of the
‘leading one’ determines the number of bits that have
been converted. The bits that were not converted
before the GO/DONE was cleared are unrecoverable.
REGISTER 9-1:
ADCON0: A/D CONTROL REGISTER (PIC12F510)
R/W-1
R/W-1
R/W-1
R/W-1
R/W-1
R/W-1
R/W-0
R/W-0
ANS1
ANS0
ADCS1
ADCS0
CHS1
CHS0
GO/DONE
ADON
bit 7
bit 0
Legend:
R = Readable bit
-n = Value at POR
W = Writable bit
‘1’ = Bit is set
U = Unimplemented bit, read as ‘0’
‘0’ = Bit is cleared
x = Bit is unknown
bit 7-6
ANS<1:0>:
ADC Analog Input Pin Select bits
(1), (2), (5)
00
= No pins configured for analog input
01
= AN2 configured as an analog input
10
= AN2 and AN0 configured as analog inputs
11
= AN2, AN1 and AN0 configured as analog inputs
ADCS<1:0>:
ADC Conversion Clock Select bits
00
= F
OSC
/16
01
= F
OSC
/8
10
= F
OSC
/4
11
= INTOSC/4
CHS<1:0>:
ADC Channel Select bits
(5)
00
= Channel AN0
01
= Channel AN1
10
= Channel AN2
11
= 0.6V absolute voltage reference
GO/DONE:
ADC Conversion Status bit
(4)
1
= ADC conversion in progress. Setting this bit starts an ADC conversion cycle. This bit is automatically cleared
by hardware when the ADC is done converting.
0
= ADC conversion completed/not in progress. Manually clearing this bit while a conversion is in process termi-
nates the current conversion.
ADON:
ADC Enable bit
1
= ADC module is operating
0
= ADC module is shut-off and consumes no power
bit 5-4
bit 3-2
bit 1
bit 0
Note 1:
When the ANS bits are set, the channels selected will automatically be forced into Analog mode, regardless of the pin
function previously defined. The only exception to this is the comparator, where the analog input to the comparator and
the ADC will be active at the same time. It is the users responsibility to ensure that the ADC loading on the comparator
input does not affect their application.
The ANS<1:0> bits are active regardless of the condition of ADON.
CHS<1:0> bits default to
11
after any Reset.
If the ADON bit is clear, the GO/DONE bit cannot be set.
C1OUT, when enabled, overrides AN2.
2:
3:
4:
5:
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| PIC12F510-E/MC | 功能描述:8位微控制器 -MCU 1.5 KB Flash 38 RAM 6 I/O 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(shí)鐘頻率:50 MHz 程序存儲(chǔ)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(fēng)格:SMD/SMT |
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