參數(shù)資料
型號： ADUuC7027BSTZ62-RL
廠商： Analog Devices, Inc.
英文描述： Precision Analog Microcontroller 12-bit Analog I/O, ARM7TDMI MCU
中文描述： 精密模擬微控制器的12位模擬I / O，ARM7TDMI的微控制器
文件頁數(shù)： 39/92頁
文件大?。?/td> 850K
代理商： ADUUC7027BSTZ62-RL
ADuC7019/20/21/22/24/25/26/27
Table 14. ADCCON MMR Bit Designations
Bit
Value
Description
15:13
Reserved.
12:10
ADC clock speed.
000
fADC/1. This divider is provided to obtain
1 MSPS ADC with an external clock <41.78 MHz.
001
fADC/2 (default value).
010
fADC/4.
011
fADC/8.
100
fADC/16.
101
fADC/32.
9:8
ADC acquisition time.
00
2 clocks.
01
4 clocks.
10
8 clocks (default value).
11
16 clocks.
7
Enable start conversion.
Set
by the user to start any type of conversion
command.
Cleared
by the user to disable a
start conversion (clearing this bit does not
stop the ADC when continuously converting).
6
Enable ADC
BUSY
.
Set
by the user to enable the ADC
BUSY
pin.
Cleared
by the user to disable the ADC
BUSY
pin.
5
ADC power control.
Set
by the user to place the ADC in normal
mode (the ADC must be powered up for at least
5 μs before it converts correctly).
Cleared
by the
user to place the ADC in power-down mode.
4:3
Conversion mode.
00
Single-ended mode.
01
Differential mode.
10
Pseudo differential mode.
11
Reserved.
2:0
Conversion type.
000
Enable CONV
START
pin as a conversion input.
001
Enable Timer1 as a conversion input.
010
Enable Timer0 as a conversion input.
011
Single software conversion; sets to 000 after
conversion (Bit 7 of ADCCON MMR should be
cleared after starting a single software
conversion to avoid further conversions
triggered by the CONV
START
pin).
100
Continuous software conversion.
101
PLA conversion.
Other
Reserved.
Rev. A | Page 39 of 92
ADCCP Register
Name
ADCCP
Address
0xFFFF0504
Default Value
0x00
Access
R/W
ADCCP is an ADC positive channel selection register. This
MMR is described in Table 15.
Table 15. ADCCP
1
MMR Bit Designation
Bit
Value
Description
7:5
Reserved
4:0
Positive channel selection bits
00000
ADC0
00001
ADC1
00010
ADC2
00011
ADC3
00100
ADC4
00101
ADC5
00110
ADC6
00111
ADC7
01000
ADC8
01001
ADC9
01010
ADC10
01011
ADC11
01100
DAC0/ADC12
01101
DAC1/ADC13
01110
DAC2/ADC14
01111
DAC3/ADC15
10000
Temperature sensor
10001
AGND (self-diagnostic feature)
10010
Internal reference (self-diagnostic feature)
10011
AV
DD
/2
Others
Reserved
1
ADC and DAC channel availability depends on part model. See the Ordering
Guide for details.
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