參數(shù)資料
型號(hào): UPD17201AGF
廠商: NEC Corp.
英文描述: 4-BIT SINGLE-CHIP MICROCONTROLLER WITH LCD CONTROLLER/DRIVER AND A/D CONVERTER FOR INFRARED REMOTE CONTROL TRANSMITTERS
中文描述: 4位單片機(jī)與LCD控制器/驅(qū)動(dòng)器和A / D轉(zhuǎn)換器紅外遙控遞質(zhì)
文件頁數(shù): 49/120頁
文件大小: 516K
代理商: UPD17201AGF
μ
PD17201A, 17207
49
9.3.2 Internal Reference Voltage Setting Register (ADCR)
The internal reference voltage setting register (ADCR) is an 8-bit register that sets the reference voltage of the
converter. This register is allocated to the peripheral hardware. Data is written to the ADCR via data buffer (DBF).
The 8-bit data set to DBF0 and DBF1 is written to the ADCR by using the “PUT ADCR, DBF” instruction.
9.3.3 Compare Result Register
The result of comparison by the converter is stored to the ADCCMP flag in the register file.
Fig. 9-3 Compare Result Register
RF: address 20H
Bit 3
Bit 2
Bit 1
Bit 0
0
0
0
A
D
C
C
M
P
Read/write
Initial value at reset
0
0
0
0
R
ADCCMP
Read = R
[In compare mode]
ADCCMP
Result of comparison
0
1
ADC
2
voltage < ADC
0
voltage
ADC
3
voltage < ADC
1
voltage
ADC
2
voltage
ADC
0
voltage
ADC
3
voltage
ADC
1
voltage
[In A/D conversion mode]
ADCCMP
Result of comparison
0
1
ADC
n
voltage < internal reference voltage
ADC
n
voltage
internal reference voltage
(n = 0 to 3)
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