M30622M4 MITSUBISHI [Mitsubishi Electric Semiconductor], M30622M4 Datasheet - Page 159

• Manufacturer Part Number: M30622M4
• Description: SINGLE-CHIP 16-BIT CMOS MICROCOMPUTER
• Manufacturer: MITSUBISHI [Mitsubishi Electric Semiconductor]

A-D Converter
Table 1.20.5. Repeat sweep mode 0 specifications
Figure 1.20.7. A-D conversion register in repeat sweep mode 0
(4) Repeat sweep mode 0
Function
Start condition
Stop condition
Interrupt request generation timing
Input pin
Reading of result of A-D converter
In repeat sweep mode 0, the pins selected using the A-D sweep pin select bit are used for repeat sweep
A-D conversion. Table 1.20.5 shows the specifications of repeat sweep mode 0. Figure 1.20.7 shows the
A-D control register in repeat sweep mode 0.
A-D control register 0 (Note)
A-D control register 1 (Note 1)
b7
b7
Item
b6
b6
b5
b5
1
b4
1 1
b4
b3
b3
b2
b2
0
b1
b1
b0
b0
Note: If the A-D control register is rewritten during A-D conversion, the conversion result
Note 1: If the A-D control register is rewritten during A-D conversion, the conversion result
Note 2: Neither “01” nor “10” can be selected with the external op-amp connection mode bit.
The pins selected by the A-D sweep pin select bit are used for repeat sweep A-D conversion
Writing “1” to A-D conversion start flag
Writing “0” to A-D conversion start flag
None generated
AN
Read A-D register corresponding to selected pin (at any time)
Bit symbol
Bit symbol
SCAN0
SCAN1
CKS1
VCUT
OPA0
OPA1
ADST
CKS0
MD2
BITS
MD0
MD1
TRG
0
CH0
CH1
CH2
Symbol
ADCON0
Symbol
ADCON1
is indeterminate.
and AN
is indeterminate.
Analog input pin
select bit
A-D operation mode
select bit 0
Trigger select bit
A-D conversion start flag
Frequency select bit 0
A-D operation mode
select bit 1
A-D sweep pin select bit
Frequency select bit 1
External op-amp
connection mode
bit (Note 2)
8/10-bit mode select bit
Vref connect bit
1
(2 pins), AN
Bit name
Bit name
Address
Address
03D6
03D7
16
16
0
to AN
00000XXX
When reset
When reset
0 : Any mode other than repeat sweep mode 1
0 : 8-bit mode
1 : 10-bit mode
0 : f
1 : f
1 : Vref connected
b7 b6
When single sweep and repeat sweep mode 0
are selected
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 sweep mode 0
b4 b3
1 1 : Repeat sweep mode 0
0 : Software trigger
1 : AD
0 : A-D conversion disabled
1 : A-D conversion started
0 : f
1 : f
0 0 : AN
0 1 : AN
1 0 : AN
1 1 : AN
b1 b0
Specification
3
00
AD
AD
AD
AD
(4 pins), AN
/2 or f
16
TRG
/4 is selected
/2 is selected
is selected
0
0
0
0
, AN
to AN
to AN
to AN
trigger
2
AD
/4 is selected
1
(2 pins)
3
5
7
(4 pins)
(6 pins)
(8 pins)
Function
Function
SINGLE-CHIP 16-BIT CMOS MICROCOMPUTER
0
to AN
5
(6 pins), or AN
Mitsubishi microcomputers
R
R
M16C / 62 Group
W
W
0
to AN
7
(8 pins)
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