参数资料
型号: M30240M5-XXXFP
元件分类: 微控制器/微处理器
英文描述: 16-BIT, MROM, 12 MHz, MICROCONTROLLER, PQFP80
封装: 0.80 MM PITCH, PLASTIC, QFP-80
文件页数: 8/139页
文件大小: 1453K
代理商: M30240M5-XXXFP
105
Mitsubishi microcomputers
M30240 Group
SINGLE-CHIP 16-BIT CMOS MICROCOMPUTER
Specifications REV. G
Specifications in this manual are tentative and subject to change
A-D Converter
1.2.24.3 Single-sweep mode
In single-sweep mode, the pins selected using the A-D sweep pin select bit are used for one-by-one
A-D conversion. Table 1.33 shows the specifications of single-sweep mode. Figure 1.101 shows the
A-D control register in single-sweep mode.
Figure 1.101: A-D conversion register in single-sweep mode
Table 1.33:
Single-sweep mode specification
Item
Specification
Function
The pins selected by the A-D sweep pin select bit are used for one-by-one A-D conversion
Start condition
Writing “1” to A-D converter start flag
Stop condition
End of A-D conversion (A-D conversion start flag changes to “0”, except when external trigger is
selected)
Writing “0” to A-D conversion start flag
Interrupt request
generation timing
End of A-D conversion
Input pin
AN0 and AN1 (2 pins), AN0 to AN3 (4 pins), AN0 to AN5 (6 pins), or AN0 to AN7 (8 pins)
Reading of result
of A-D converter
Read A-D register corresponding to selected pin
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
CH0
Bit symbol
Bit name
Function
CH1
CH2
A-D operation mode
select bit 0
1 0 : Single sweep mode
MD0
MD1
Trigger select bit
0 : Software trigger
1 : ADTRG trigger
TRG
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)
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
0 : Any mode other than repeat sweep mode 1
A-D operation mode
select bit 1
1 : Vref connected
W
R
1 0
Invalid in single sweep mode
0
Note : If the A-D control register is rewritten during A-D conversion, the conversion result
is indeterminate.
b4 b3
When single sweep and repeat sweep mode 0
are selected
0 0 : AN 0, AN1 (2 pins)
0 1 : AN 0 to AN3 (4 pins)
1 0 : AN 0 to AN5 (6 pins)
1 1 : AN 0 to AN7 (8 pins)
b1 b0
1
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
Reserved bit
Always set to "0"
0 0
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