参数资料
型号: MB91108PFV
元件分类: 微控制器/微处理器
英文描述: 32-BIT, 50 MHz, RISC MICROCONTROLLER, PQFP120
封装: PLASTIC, LQFP-120
文件页数: 43/96页
文件大小: 1342K
代理商: MB91108PFV
MB91107/108
48
8.
A/D Converter (Successive Approximation Conversion Type)
The A/D converter is the module which converts an analog input voltage to a digital value, and it has following
features.
Minimum converting time: 5.6
s/ch. (system clock: 25 MHz)
Inner sample and hold circuit
Resolution: 10 bits
Analog input can be selected from 4 channels by program.
Single convert mode: 1 channel is selected and converted.
Scan convert mode: Converting continuous channels. Maximum 4 channels are programmable.
Continuous convert mode: Converting the specified channel repeatedly.
Stop convert mode: After converting one channel then stop and wait till next activation synchronising at
the beginning of conversion can be peformed.
DMA transfer operation is available by interruption.
Operating factor can be selected from the software, the external trigger (falling edge), and 16-bit reroad timer
(rising edge).
(1) Register configuration
A/D converter control register
Address
bit 15
bit 0
Initial value
Access
00003AH
ADCS
0 0 0 0 0 0 0 0B
R/W
A/D converter data register
Address
bit 15
bit 0
Initial value
Access
000038H
ADCR
- - - - - -XXB
XXXXXXXXB
R
R/W
: Readable and writable
R
: Read only
X
: Indeterminate
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