M30622 Mitsubishi, M30622 Datasheet - Page 151

• Manufacturer Part Number: M30622
• Description: SINGLE-CHIP 16-BIT CMOS MICROCOMPUTER
• Manufacturer: Mitsubishi

A-D Converter
Table 1.20.3. Repeat mode specifications
Note 1: AN
Figure 1.20.5. A-D conversion register in repeat mode
(2) Repeat mode
Function
Star condition
Stop condition
Interrupt request generation timing
Input pin
Reading of result of A-D converter
In repeat mode, the pin selected using the analog input pin select bit is used for repeated A-D conversion.
Table 1.20.3 shows the specifications of repeat mode. Figure 1.20.5 shows the A-D control register in
repeat mode.
Tentative Specifications REV.A
S
Item
pecifications in this manual are tentative and subject to change.
00
A-D control register 0 (Note 1)
A-D control register 1 (Note 1)
b7
b7
to AN
b6
b6
b5
b5
1
b4
0
b4
07
, and AN
b3
b3
1
b2
b2
0
b1
b1
The pin selected by the analog input pin select bit is used for repeated A-D conversion
Writing “1” to A-D conversion start flag
Writing “0” to A-D conversion start flag
None generated
One of AN
Read A-D register corresponding to selected pin
b0
b0
20
Note 1: If the A-D control register is rewritten during A-D conversion, the conversion
Note 2: Divide the frequency if f(X
Note 1: If the A-D control register is rewritten during A-D conversion, the conversion
Note 2: AN
Note 3: When changing A-D operation mode, set analog input pin again.
Bit symbol
Bit symbol
to AN
SCAN0
SCAN1
ADST
CKS0
CKS1
VCUT
OPA0
OPA1
CH0
CH1
CH2
TRG
BITS
MD0
MD1
MD2
Symbol
ADCON0
Symbol
ADCON1
result is indeterminate.
result is indeterminate.
equal to 10MHz.
27
0
00
to AN
can be used the same as AN
to AN
Analog input pin
select bit
A-D operation mode
select bit 0
Frequency select bit 0
A-D operation mode
select bit 1
8/10-bit mode select bit
Frequency select bit 1
Vref connect bit
Trigger select bit
A-D conversion start flag
A-D sweep pin select bit
External op-amp
connection mode bit
07
7
Bit name
, as selected
, and AN
Bit name
Address
Address
151
03D6
03D7
(Note 2)
20
16
16
to AN
IN
Specification
) exceeds 10MHz, and make
0 : Any mode other than repeat sweep mode 1
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
Invalid in repeat mode
0 : 8-bit mode
1 : 10-bit mode
0 : f
1 : f
1 : Vref connected
b7 b6
27
00000XXX
When reset
When reset
0 0 0 : AN
0 0 1 : AN
0 1 0 : AN
0 1 1 : AN
1 0 0 : AN
1 0 1 : AN
1 1 0 : AN
1 1 1 : AN
b4 b3
0 1 : Repeat mode
0 : Software trigger
1 : AD
0 : A-D conversion disabled
1 : A-D conversion started
0 : f
1 : f
b2 b1 b0
can be used the same as AN
AD
AD
00
AD
AD
(Note 1)
/2 or f
is selected
16
TRG
/4 is selected
/2 is selected
0
1
2
3
4
5
6
7
trigger
AD
2
is selected
is selected
is selected
is selected
is selected
is selected
is selected
is selected
SINGLE-CHIP 16-BIT CMOS MICROCOMPUTER
/4 is selected
0
to AN
Function
Function
7
.
AD
Mitsubishi microcomputers
frequency
0
(Note 3)
(Note 3)
to AN
(Note 2)
M16C / 62T Group
7
.
R
R
W
W