M30622SAFP MITSUBISHI [Mitsubishi Electric Semiconductor], M30622SAFP Datasheet - Page 152

• Manufacturer Part Number: M30622SAFP
• Description: SINGLE-CHIP 16-BIT CMOS MICROCOMPUTER
• Manufacturer: MITSUBISHI [Mitsubishi Electric Semiconductor]

A-D Converter
152
Table 1.17.3. Repeat mode specifications
Figure 1.17.5. 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 1.17.3 shows the specifications of repeat mode. Figure 1.17.5 shows the A-D control register in
repeat mode.
Item
A-D control register 0 (Note 1)
b7
A-D control register 1 (Note)
b7
b6
b6
b5
b5
1
0 1
b4
b4
b3
b3
b2
b2
0
b1
b1
b0
b0
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
Note 1: If the A-D control register is rewritten during A-D conversion, the conversion
Note 2: When changing A-D operation mode, set analog input pin again.
Note: If the A-D control register is rewritten during A-D conversion, the conversion
Bit symbol
Bit symbol
SCAN0
SCAN1
VCUT
OPA0
OPA1
ADST
CKS0
CKS1
MD0
MD1
TRG
MD2
BITS
CH0
CH1
CH2
Symbol
ADCON0
Symbol
ADCON1
result is indeterminate.
result is indeterminate.
0
A-D sweep pin
select bit
A-D operation mode
select bit 1
8/10-bit mode select bit
Frequency select bit 1
Vref connect bit
Analog input pin
select bit
A-D operation mode
select bit 0
Trigger select bit
A-D conversion start flag
Frequency select bit 0
External op-amp
connection mode bit
to AN
Bit name
Bit name
7
, as selected
Address
Address
03D6
03D7
16
16
Invalid in repeat mode
0 : Any mode other than repeat sweep mode 1
0 : 8-bit mode
1 : 10-bit mode
1 : Vref connected
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
0 : f
1 : f
b7 b6
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
Specification
AD
AD
00
AD
AD
/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
/4 is selected
Function
Function
SINGLE-CHIP 16-BIT CMOS MICROCOMPUTER
(Note 2)
(Note 2)
M16C / 62A Group
R
R
Mitsubishi microcomputers
W
W