参数资料
型号: TMP86C847UG
厂商: Toshiba Corporation
英文描述: Zener Diode; Application: General; Pd (mW): 500; Vz (V): 15.7 to 16.5; Condition Iz at Vz (mA): 5; C (pF) max: -; Condition VR at C (V):   ESD (kV) min: -; Package: DO-35
中文描述: 8位微控制器
文件页数: 141/160页
文件大小: 1541K
代理商: TMP86C847UG
Page 133
TMP86C847UG
12.3 Function
12.3.1 Software Start Mode
After setting ADCCR1<AMD> to “01” (software start mode), set ADCCR1<ADRS> to “1”. AD conver-
sion of the voltage at the analog input pin specified by ADCCR1<SAIN> is thereby started.
After completion of the AD conversion, the conversion result is stored in AD converted value registers
(ADCDR1, ADCDR2) and at the same time ADCDR2<EOCF> is set to 1, the AD conversion finished inter-
rupt (INTADC) is generated.
ADRS is automatically cleared after AD conversion has started. Do not set ADCCR1<ADRS> newly again
(Restart) during AD conversion. Before setting ADRS newly again, check ADCDR2<EOCF> to see that the
conversion is completed or wait until the interrupt signal (INTADC) is generated (e.g., interrupt handling rou-
tine).
Figure 12-2 Software Start Mode
12.3.2 Repeat Mode
AD conversion of the voltage at the analog input pin specified by ADCCR1<SAIN> is performed repeat-
edly. In this mode, AD conversion is started by setting ADCCR1<ADRS> to “1” after setting
ADCCR1<AMD> to “11” (Repeat mode).
After completion of the AD conversion, the conversion result is stored in AD converted value registers
(ADCDR1, ADCDR2) and at the same time ADCDR2<EOCF> is set to 1, the AD conversion finished inter-
rupt (INTADC) is generated.
In repeat mode, each time one AD conversion is completed, the next AD conversion is started. To stop AD
conversion, set ADCCR1<AMD> to “00” (Disable mode) by writing 0s. The AD convert operation is stopped
immediately. The converted value at this time is not stored in the AD converted value register.
ADCDR1 status
EOCF cleared by reading
conversion result
Conversion result
read
ADCDR2<EOCF>
INTADC interrupt request
ADCDR2<ADBF>
ADCCR1<ADRS>
1st conversion result
2nd conversion result
Indeterminate
AD conversion start
AD conversion start
ADCDR1
ADCDR2
Conversion result
read
Conversion result
read
Conversion result
read
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