參數(shù)資料
型號(hào)： M30240MC-XXXFP
元件分類： 微控制器/微處理器
英文描述： 16-BIT, MROM, MICROCONTROLLER, PQFP80
封裝： 0.80 MM PITCH, PLASTIC, QFP-80
文件頁(yè)數(shù)： 12/125頁(yè)
文件大?。?/td> 753K
代理商： M30240MC-XXXFP
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Mitsubishi microcomputers
M16C / 24 Group
SINGLE-CHIP 16-BIT CMOS MICROCOMPUTER
111
CONFIDENTIAL
Preliminary Specifications REV.B
Specifications in this manual are tentative and subject to change
A-D Converter
(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 select-
ed using the A-D sweep pin select bit. Table 35 shows the specifications of repeat sweep mode 1.
Figure 105 show the A-D control in repeat sweep mode 1.
Table 35:
Repeat sweep mode 1 specication
Figure 105:
A-D conversion register in repeat sweep mode 1
Item
Specication
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 ag
Stop condition
Writing “0” to A-D conversion start ag
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)
Reading of result of A-D converter
Read A-D register corresponding to selected pin (at any time)
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 1 : Repeat sweep mode 1
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 : 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
1 : Repeat sweep mode 1
A-D operation mode
select bit 1
1 : Vref connected
W
R
1
Invalid in repeat sweep mode 1
1
Note 1: If the A-D control register is rewritten during A-D conversion, the conversion result
is indeterminate.
Note 2: Neither ‘01’ nor ‘10’ can be selected with the external op-amp connection mode bit.
b4 b3
When repeat sweep mode 1 is selected
0 0 : AN0 (1 pin)
0 1 : AN0, AN1 (2 pins)
1 0 : AN0 to AN2 (3 pins)
1 1 : AN0 to AN3 (4 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”
Reserved bit
Always set to
“0”
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