参数资料
型号: M30201F4T-FP
元件分类: 微控制器/微处理器
英文描述: 16-BIT, FLASH, 10 MHz, MICROCONTROLLER, PQFP56
封装: PLASTIC, QFP-56
文件页数: 153/158页
文件大小: 1633K
代理商: M30201F4T-FP
94
Under
development
Mitsubishi microcomputers
M30201 Group
SINGLE-CHIP 16-BIT CMOS MICROCOMPUTER
A-D Converter
(2) Repeat mode
In repeat mode, the pin selected using the analog input pin select bit is used for repeated A-D conversion.
(See Table 1.32.) Figure 1.86 shows the A-D control register in repeat mode.
Figure 1.86. A-D conversion register in repeat mode
Item
Specification
Function
The pin selected by the analog input pin select bit is used for repeated A-D conversion
Start condition
Writing “1” to A-D conversion start flag
Stop condition
Writing “0” to A-D conversion start flag
Interrupt request generation timing
None generated
Input pin
One of AN0 to AN7, as selected (Note)
Reading of result of A-D converter
Read A-D register corresponding to selected pin
Table 1.32. Repeat mode specifications
A-D control register 0 (Note 1)
Symbol
Address
When reset
ADCON0
03D616
00000XXX2
b7
b6
b5
b4
b3 b2
b1 b0
Analog input pin select bit
0 0 0 : AN0 is selected
0 0 1 : AN1 is selected
0 1 0 : AN2 is selected
0 1 1 : AN3 is selected
1 0 0 : AN4 is selected
1 0 1 : AN5 is selected
1 1 0 : AN6 is selected
1 1 1 : AN7 is selected
(Note 2)
CH0
Bit symbol
Bit name
Function
CH1
CH2
A-D operation mode
select bit 0
0 1 : Repeat mode
MD0
MD1
ADST
A-D conversion start flag
0 : A-D conversion disabled
1 : A-D conversion started
Frequency select bit 0
0 : fAD/4 is selected
1 : fAD/2 is selected
CKS0
W
R
A-D control register 1 (Note)
Symbol
Address
When reset
ADCON1
03D716
0016
Bit name
Function
Bit symbol
b7
b6
b5
b4
b3 b2
b1
b0
A-D sweep pin select bit
SCAN0
SCAN1
MD2
BITS
8/10-bit mode select bit
0 : 8-bit mode
1 : 10-bit mode
VCUT
Vref connect bit
ADGSEL0
A-D operation mode
select bit 1
1 : Vref connected
A-D input group select bit
W
R
b2 b1 b0
b4 b3
0 : Port P6 group is selected
1 : Port P5 group is selected
Note 1: If the A-D control register is rewritten during A-D conversion, the conversion result is indeterminate.
Note 2: AN50 to AN54 can be used in the same way as for AN0 to AN4.
Frequency select bit 1
0 : fAD/2 or fAD/4 is selected
1 : fAD is selected
CKS1
Note: If the A-D control register is rewritten during A-D conversion, the conversion result is indeterminate.
0
Set this bit to “0”.
0
Set this bit to “0”.
01
0
1
Invalid in repeat mode
Set this bit to “0” in this mode.
Note : AN50 to AN54 can be used in the same way as for AN0 to AN4.
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