参数资料
型号: ADUC7034BCPZ
厂商: Analog Devices Inc
文件页数: 79/136页
文件大小: 0K
描述: IC MCU FLASH 32K ANLG IO 48LFCSP
标准包装: 1
系列: MicroConverter® ADuC7xxx
核心处理器: ARM7
芯体尺寸: 16/32-位
速度: 20.48MHz
连通性: LIN,SPI,UART/USART
外围设备: POR,PSM,温度传感器,WDT
输入/输出数: 9
程序存储器容量: 32KB(16K x 16)
程序存储器类型: 闪存
RAM 容量: 1K x 32
电压 - 电源 (Vcc/Vdd): 3.5 V ~ 18 V
数据转换器: A/D 2x16b
振荡器型: 内部
工作温度: -40°C ~ 115°C
封装/外壳: 48-VFQFN 裸露焊盘,CSP
包装: 托盘
ADuC7034
Rev. B | Page 47 of 136
Current Channel ADC Control Register
Name:
ADC0CON
Address:
0xFFFF050C
Default Value:
0x0000
Access:
Read/write
Function:
The current channel ADC control MMR is a 16-bit register that is used to configure the I-ADC.
Note:
If the current ADC is reconfigured via ADC0CON, the voltage ADC and temperature ADC are also reset.
Table 36. ADC0CON MMR Bit Designations
Bit
Description
15
Current channel ADC enable.
Set to 1 by user code to enable the I-ADC.
Clearing this bit to 0 powers down the I-ADC and resets the respective ADC ready bit in the ADCSTA MMR to 0.
14 to 13
IIN current source enable.
00 = disables current sources.
01 = enables 50 μA current source on IIN+.
10 = enables 50 μA current source on IIN.
11 = enables 50 μA current source on both IIN and IIN+.
12 to 10
Not used. These bits are reserved for future functionality and should be written as 0.
9
Current channel ADC output coding.
Set to 1 by user code to configure I-ADC output coding as unipolar.
Cleared to 0 by user code to configure I-ADC output coding as twos complement.
8
Not used. This bit is reserved for future functionality and should be written as 0.
7 to 6
Current channel ADC inputs select.
00 = IIN+ and IIN are selected.
01 = IIN and IIN are selected. Diagnostic, internal short configuration.
10 = VREF/136 and 0 V are selected. Diagnostic, test voltage for gain settings ≤ 128. If the reference REG_AVDD and
AGND divided by 2 is selected, REG_AVDD is used for VREF. This leads to ADC0DAT being scaled by 2.
11 = not defined.
5 to 4
Current channel ADC reference select.
00 = internal 1.2 V precision reference is selected. In ADC low power mode, the voltage reference selection is controlled
by ADCMDE[5].
01 = external reference inputs VREF and GND_SW are selected.
10 = external reference inputs divided by 2 (that is, VREF and GND_SW divided by 2) are selected, which allows an
external reference up to REG_AVDD.
11 = the reference REG_AVDD and AGND divided by 2 is selected.
3 to 0
Current channel ADC gain select. The nominal I-ADC full-scale input voltage is VREF/gain.
0000 = I-ADC gain of 1.
0001 = I-ADC gain of 2.
0010 = I-ADC gain of 4.
0011 = I-ADC gain of 8.
0100 = I-ADC gain of 16.
0101 = I-ADC gain of 32.
0110 = I-ADC gain of 64.
0111 = I-ADC gain of 128.
1000 = I-ADC gain of 256.
1001 = I-ADC gain of 512.
1010 = I-ADC gain is undefined.
1011 = I-ADC gain is undefined.
1100 = I-ADC gain is undefined.
1101 = I-ADC gain is undefined.
1110 = I-ADC gain is undefined.
1111 = I-ADC gain is undefined.
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