M30622 Mitsubishi, M30622 Datasheet - Page 153

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

A-D Converter
Note 1: AN
Figure 1.20.7. A-D conversion register in repeat sweep mode 0
Table 1.20.5. Repeat sweep mode 0 specifications
(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.
Tentative Specifications REV.A
S
A-D control register 0 (Note 1)
A-D control register 1 (Note 1)
b7
b7
Item
pecifications in this manual are tentative and subject to change.
00
b6
b6
to AN
b5
b5
1
1 1
b4
b4
07
b3
b3
, and AN
b2
b2
0
b1
b1
b0
b0
Note 1: 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: Divide the frequency if f(X
Note 3: AN
Note 4: 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
20
SCAN0
SCAN1
OPA0
OPA1
0
CKS1
VCUT
BITS
ADST
CKS0
MD2
MD0
MD1
TRG
CH0
CH1
CH2
Symbol
ADCON1
Symbol
ADCON0
and AN
is indeterminate.
to AN
is indeterminate.
10MHz.
00
to AN
1
27
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
External op-amp
connection mode
bit (Note 4)
A-D sweep pin select bit
8/10-bit mode select bit
Frequency select bit 1
Vref connect bit
(2 pins), AN
can be used the same as AN
07
Bit name
Bit name
, and AN
Address
Address
03D6
03D7
0
(Note 2)
20
to AN
153
16
16
to AN
IN
) exceeds 10MHz, and make
3
27
(4 pins), 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
can be used the same as AN
00
AD
AD
AD
AD
/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
0
1
/4 is selected
(2 pins)
to AN
3
5
7
(4 pins)
(6 pins)
(8 pins)
SINGLE-CHIP 16-BIT CMOS MICROCOMPUTER
Function
Function
0
to AN
5
(6 pins), or AN
AD
7
.
frequency equal to
0
to AN
Mitsubishi microcomputers
(Note 3)
7
0
.
to AN
M16C / 62T Group
R
R
7
W
W
(8 pins) (Note 1)