參數(shù)資料
型號: M30201MX-XXXFP
廠商: Mitsubishi Electric Corporation
英文描述: SINGLE-CHIP 16-BIT CMOS MICROCOMPUTER
中文描述: 單片16位CMOS微機(jī)
文件頁數(shù): 96/159頁
文件大小: 1496K
代理商: M30201MX-XXXFP
Unde
A-D Converter
deeopmen
Mitsubishi microcomputers
M30201 Group
SINGLE-CHIP 16-BIT CMOS MICROCOMPUTER
96
(4) Repeat sweep mode 0
In repeat sweep mode 0, the pins selected using the A-D sweep pin select bit are used for repeat sweep
A-D conversion. (See Table 1.34.) Figure 1.88 shows the A-D control register in repeat sweep mode 0.
Table 1.34. Repeat sweep mode 0 specifications
Figure 1.88. A-D conversion register in repeat sweep mode 0
Item
Specification
Function
Start condition
Stop condition
Interrupt request generation timing
Input pin
Reading of result of A-D converter
Note : AN
50
to AN
54
can be used in the same way as for AN
0
to AN
4
.
The pins selected by the A-D sweep pin select bit are used for repeat sweep A-D conversion
Writing “1” to A-D conversion start flag
Writing “0” to A-D conversion start flag
None generated
AN
0
and AN
1
(2 pins), AN
0
to AN
3
(4 pins), AN
0
to AN
5
(6 pins), or AN
0
to AN
7
(8 pins)(Note)
Read A-D register corresponding to selected pin (at any time)
A-D control register 0 (Note)
b7
b6
b5
b4
b3 b2
0
1 1
Symbol
ADCON0
Address
03D6
16
When reset
00000XXX
2
b1
b0
Analog input pin select bit
Invalid in repeat sweep mode 0
CH0
Bit symbol
Bit name
Function
CH1
CH2
A-D operation mode
select bit 0
MD0
MD1
ADST
A-D conversion start flag
0 : A-D conversion disabled
1 : A-D conversion started
Frequency select bit 0
0 : f
AD
/4 is selected
1 : f
AD
/2 is selected
CKS0
W
R
A-D control register 1 (Note 1)
b7
b6
b5
b4
b3 b2
0
0
1
Symbol
ADCON1
Address
03D7
16
When reset
00
16
Bit name
Function
Bit symbol
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
A
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 : f
AD
/2 or f
AD
/4 is selected
1 : f
AD
is selected
CKS1
Note 1: If the A-D control register is rewritten during A-D conversion, the conversion result is indeterminate.
Note 2: AN
50
to AN
54
can be used in the same way as for AN
0
to AN
4
.
Note 3: If port P5 group is selected, the contents of A-D registers 5 to 7 are indeterminate.
A
A
A
A
A
A
A
A
A
A
A
A
A
A
A
A
A
A
A
A
AA
A
A
A
A
AA
AA
A
A
A
AA
Set this bit to “0”.
Set this bit to “0”.
When single sweep and repeat sweep
mode 0 are selected
b1 b0
0 0 : AN
0
, AN
1
(2 pins)
0 1 : AN
0
to AN
3
(4 pins)
1 0 : AN
0
to AN
5
(6 pins)
1 1 : AN
0
to AN
7
(8 pins)
(Note 2, 3)
Set this bit to “0” in this mode.
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