參數(shù)資料
型號(hào)： M30218MFCFP
元件分類： 微控制器/微處理器
英文描述： 16-BIT, FLASH, 10 MHz, MICROCONTROLLER, PQFP100
封裝： PLASTIC, QFP-100
文件頁數(shù)： 22/161頁
文件大?。?/td> 2043K
代理商： M30218MFCFP
Under
development
Tentative Specifications REV.A
Specifications in this manual are tentative and subject to change.
Mitsubishi microcomputers
M30218 Group
SINGLE-CHIP 16-BIT CMOS MICROCOMPUTER
118
A-D converter
(1) One-shot mode
In one-shot mode, the pin selected using the analog input pin select bit is used for one-shot A-D conversion. Table
JA-2 shows the specifications of one-shot mode. Figure JA-4 shows the A-D control register in one-shot mode.
Table JA-2. One-shot mode specifications
Item
Specification
Function
The pin selected by the analog input pin select bit is used for one A-D conversion
Start condition
Writing “1” to A-D conversion start flag
Stop condition
End of A-D conversion (A-D conversion start flag changes to “0”)
Writing “0” to A-D conversion start flag
Interrupt request generation timing End of A-D conversion
Input pin
One of AN0 to AN7, as selected
Reading of result of A-D converter Read A-D register corresponding to selected pin
Figure JA-4. A-D conversion register in one-shot mode
A-D control register 0 (Note)
Symbol
Address
When reset
ADCON0
03D616
00000XXX2
R
Bit name
Function
Bit symbol
b7
b6
b5
b4
b3
b2
b1
b0
Analog input pin
select bit
CH0
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: fAD/4 is selected
1: fAD/2 is selected
CKS0
W
0
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
A-D operation mode
select bit 1
0 : Any mode other than repeat sweep
mode 1
1 : Vref connected
W
R
Invalid in one-shot mode
0
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
b2 b1 b0
0 0 : One-shot mode
b4 b3
1
Note: If the A-D control register is rewritten during A-D conversion, the conversion
result is indeterminate.
Frequency select bit1
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.
Must always be “0”.
0
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