M30622MA-XXXFP RENESAS [Renesas Technology Corp], M30622MA-XXXFP Datasheet - Page 408

• Manufacturer Part Number: M30622MA-XXXFP
• Description: 16-BIT SINGLE-CHIP MICROCOMPUTER M16C FAMILY
• Manufacturer: RENESAS [Renesas Technology Corp]

A-D Converter
Figure 2.7.10. Set-up procedure of one-shot mode, with expanded analog input pin selected
Reading conversion result
(b15)
b7
Selecting sample and hold
b7
Setting A-D control register 0 and A-D control register 1
Setting A-D conversion start flag
b7
b7
0
1
Note: Rewrite to analog input pin select bit after changing A-D operation mode.
0
0 0
b0
(b8)
b0
1
b0
b0
A-D conversion method select bit
Analog input pin select bit (Note)
One-shot mode is selected (Note)
Trigger select bit
A-D conversion start flag
Frequency select bit 0
A-D conversion start flag
b7
b2 b1 b0
1 : With sample and hold
0 0 0 : AN
0 0 1 : AN
0 : Software trigger
1 : A-D conversion started
0 : A-D conversion disabled
0 : f
1 : f
A-D control register 2 [Address 03D4
ADCON2
A-D control register 0 [Address 03D6
ADCON0
A-D control register 0 [Address 03D6
ADCON0
AD
AD
/4 is selected
/2 is selected
0
1
is selected(ANEX0)
is selected(ANEX1)
b0
Start A-D conversion
Stop A-D conversion
Eight low-order bits of A-D conversion result
During 10-bit mode
During 8-bit mode
A-D register 0
A-D register 1
Two high-order bits of A-D conversion result
When read, the content is indeterminate
16
16
16
]
]
]
b7
[Address 03C1
[Address 03C3
1
16
16
0
, 03C0
, 03C2
SINGLE-CHIP 16-BIT CMOS MICROCOMPUTER
b0
16
16
A-D operation mode select bit 1 (Note)
]
]
Invalid in one-shot mode
8/10-bit mode select bit
Frequency select bit 1
Vref connect bit
External op-amp connection mode bit
b7 b6
0 (Must always be “0” in one-shot mode)
A-D control register 1 [Address 03D7
ADCON1
0 : 8-bit mode
1 : 10-bit mode
0 : f
1 : f
1 : Vref connected
0 1 : ANEX0 input is A-D converted
1 0 : ANEX1 input is A-D converted
AD0
AD1
AD
AD
/2 or f
is selected
AD
/4 is selected
Mitsubishi microcomputers
M16C / 62 Group
16
]
393