參數(shù)資料
型號： M30201M2-XXXFP
元件分類： 微控制器/微處理器
英文描述： 16-BIT, MROM, 10 MHz, MICROCONTROLLER, PQFP56
封裝： PLASTIC, QFP-56
文件頁數(shù)： 156/158頁
文件大小： 1633K
代理商： M30201M2-XXXFP
97
Under
development
Mitsubishi microcomputers
M30201 Group
SINGLE-CHIP 16-BIT CMOS MICROCOMPUTER
A-D Converter
Item
Specification
Function
All pins perform repeat sweep A-D conversion, with emphasis on the pin or
pins selected by the A-D sweep pin select bit
Example : AN0 selected
AN0
AN1
AN0
AN2
AN0
AN3, etc
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
AN0 (1 pin), AN0 and AN1 (2 pins), AN0 to AN2 (3 pins), AN0 to AN3 (4 pins) (Note)
Reading of result of A-D converter
Read A-D register corresponding to selected pin (at any time)
(5) Repeat sweep mode 1
In repeat sweep mode 1, all pins are used for A-D conversion with emphasis on the pin or pins selected using
the A-D sweep pin select bit. (See Table 1.35.) Figure 1.89 shows the A-D control register in repeat sweep mode
1.
Figure 1.89. A-D conversion register in repeat sweep mode 1
Table 1.35. Repeat sweep mode 1 specifications
A-D control register 0 (Note)
Symbol
Address
When reset
ADCON0
03D616
00000XXX2
b7
b6
b5
b4
b3 b2
b1 b0
Analog input pin select bit
Invalid in repeat sweep mode 1
CH0
Bit symbol
Bit name
Function
CH1
CH2
A-D operation mode
select bit 0
1 1 : Repeat sweep mode 1
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 1)
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
Set “1” in this mode.
1 : Vref connected
A-D input group select bit
W
R
b4 b3
0 : Port P6 group is selected
1 : Port P5 group is selected
Note: If the A-D control register is rewritten during A-D conversion, the conversion result is indeterminate.
Frequency select bit 1
0 : fAD/2 or fAD/4 is selected
1 : fAD is selected
CKS1
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.
Note 3: If port P5 group is selected, the contents of A-D registers 5 to 7 are indeterminate.
0
Set this bit to “0”.
0
Set this bit to “0”.
11
1
When single sweep and repeat sweep
mode 1 are selected
0 0 : AN0 (1 pins)
0 1 : AN0, AN1 (2 pins)
1 0 : AN0 to AN2 (3 pins)
1 1 : AN0 to AN3 (4 pins)
b1 b0
(Note 2, 3)
Note : AN50 to AN54 can be used in the same way as for AN0 to AN4.
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