參數(shù)資料
型號： M30100M2T-XXXFP
元件分類： 微控制器/微處理器
英文描述： 16-BIT, MROM, 16 MHz, MICROCONTROLLER, PQFP32
封裝： PLASTIC, LQFP-32
文件頁數(shù)： 19/163頁
文件大?。?/td> 2767K
代理商： M30100M2T-XXXFP
Under
development
Tentative Specifications REV.E1
Specifications in this manual are tentative and subject to change.
Mitsubishi microcomputers
M30100/M30102 Group
SINGLE-CHIP 16-BIT CMOS MICROCOMPUTER
A-D Converter
115
(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 conver-
sion. (See Table 1.16.2.) Figure 1.16.4 shows the A-D control register in one-shot mode.
A-D control register 0 (Note 1)
Symbol
Address
When reset
ADCON0
00D616
00000XXX2
b7
b6
b5
b4
b3 b2
b1
b0
Analog input pin select bit
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, AN8 is selected
1 0 1 : AN5, AN9 is selected
1 1 0 : AN6, AN10 is selected
1 1 1 : AN7, AN11 is selected
CH0
Bit symbol
Bit name
Function
CH1
CH2
A-D operation mode
select bit 0
0 : One-shot mode
MD0
ADGSEL0
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
00D716
0016
Bit name
Function
Bit symbol
b7
b6
b5
b4
b3 b2
b1
b0
OPA0
OPA1
External op-amp
connection mode bit
W
R
b2 b1 b0
0 0 : ANEX0 and ANEX1 are not used
0 1 : ANEX0 input is A-D converted
1 0 : ANEX1 input is A-D converted
1 1 : External op-amp connection mode
b7 b6
Note 1: If the A-D control register is rewritten during A-D conversion, the conversion result is
indeterminate.
Note 2: When changing A-D operation mode, set analog input pin again.
Note 3: AN4 to AN7 and AN8 to AN11 are selected by the A-D input group select bit.
Note 1: If the A-D control register is rewritten during A-D conversion, the conversion result is
indeterminate.
Note 2: When f(XIN) is over 10 MHz, the
φAD frequency must be under 10 MHz by dividing.
BITS
8/10-bit mode select bit 0 : 8-bit mode
1 : 10-bit mode
VCUT
Vref connect bit
1 : Vref connected
Frequency select bit 1
0 : fAD/2 or fAD/4 is selected
1 : fAD is selected
CKS1
0
Set this bit to “0”.
0
Set this bit to “0”. When read, their values are “0”.
(Note 2)
(Note 2, 3)
A-D input group select bit
0 : Port P0 group is selected
1 : Port P1 group is selected
0
(Note 2)
0
1
Figure 1.16.4. A-D conversion register in one-shot mode
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 AN11, as selected
Reading of result of A-D converter
Read A-D register
Table 1.16.2. One-shot mode specifications
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