参数资料
型号: MB89T635P-SH
元件分类: 微控制器/微处理器
英文描述: 8-BIT, 10 MHz, MICROCONTROLLER, PDIP64
封装: SHRINK, DIP-64
文件页数: 8/153页
文件大小: 7326K
代理商: MB89T635P-SH
MB89630 SERIES HARDWARE MANUAL
2-82
[Bit 3] ADIE: Interrupt-enable specifying bit
Bit 3 is used to specify interrupt enable/disable.
[Bit 2] ADMD: Function select bit
Bit 2 is used to select the A/D mode and sense mode.
[Bit 1] EXT: Conversion select bit
Bit 1 is used to select starting method of A/D conversion.
[Bit 0] TEST: Testing bit
Bit 0 is used only for testing. Always write 1 at this bit. 1 is always read.
(c) A/D data registers H and L (ADDH, ADDL)
These registers store the results of A/D conversion in A/D mode. They write the setting value for the com
parison in it in sense mode. Upper 2 bits and Lower 8 bits assigned to ADDH and ADDL, respectivery.
A/D mode
In the A/D mode, the results are stored as soon as the A/D conversion is terminated. After the conver-
sion, the contents of the register are held until next conversion is started. Once started, the value
becomes undefined. Therefore, always read the data after the end of conversion.
Sense mode
In the sense mode, the vale to be compared with the converted value is written in these registers in ad
vance. The contents set in the register are held without changing by the comparison operation.
Do not write data during conversion in either the A/D or sense mode.
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