參數(shù)資料
型號: ADUC845
廠商: Analog Devices, Inc.
元件分類: ADC
英文描述: MicroConverter Multichannel 24-/16-Bit ADCs with Embedded 62 kB Flash and Single-Cycle MCU
中文描述: MicroConverter的多通道ADC的24-/16-Bit與嵌入式62 kB閃存以及單周期控制器
文件頁數(shù): 43/108頁
文件大小: 1109K
代理商: ADUC845
ADuC845/ADuC847/ADuC848
ADC0CON1 (PRIMARY ADC CONTROL REGISTER)
ADC0CON1 is used to configure the primary ADC for buffer, unipolar, or bipolar coding, and ADC range configuration.
Rev. A | Page 43 of 108
SFR Address:
Power-On Default:
Bit Addressable:
D2H
07H
No
Table 25. ADC0CON1 SFR Bit Designations
Bit No.
Name
7, 6
BUF1, BUF0
Description
Buffer Configuration Bits.
BUF1
BUF0
0
0
0
1
1
0
1
1
Primary ADC Unipolar Bit.
Set by the user to enable unipolar coding; zero differential input results in 000000H output.
Cleared by the user to enable bipolar coding; zero differential input results in 800000H output.
Not Implemented. Write Don’t Care.
Not Implemented. Write Don’t Care.
Primary ADC Range Bits. Written by the user to select the primary ADC input range as follows:
RN2
RN1
RN0
Selected primary ADC input range (V
REF
= 2.5 V)
0
0
0
±20 mV (0 mV–20 mV in unipolar mode)
0
0
1
±40 mV (0 mV–40 mV in unipolar mode)
0
1
0
±80 mV (0 mV–80 mV in unipolar mode)
0
1
1
±160 mV (0 mV–160 mV in unipolar mode)
1
0
0
±320 mV (0 mV–320 mV in unipolar mode)
1
0
1
±640 mV (0 mV–640 mV in unipolar mode)
1
1
0
±1.28 V (0 V–1.28 V in unipolar mode)
1
1
1
±2.56 V (0 V–2.56 V in unipolar mode)
Buffer Configuration
ADC0+ and ADC0 are buffered
Reserved
Buffer Bypass
Reserved
5
UNI
4
3
2, 1, 0
–––
–––
RN2, RN1, RN0
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