A/D Control Register 1 (Adc1) - Fujitsu F2MC-8L F202RA Hardware Manual

CHAPTER 12 A/D CONVERTER
12.4.1

A/D Control Register 1 (ADC1)

A/D control register 1 (ADC1) is used to set the enabling and disabling functions of the
A/D converter, select an analog input, and check the status.
■
A/D Control Register 1 (ADC1)
Address
bit7
0030
H
R/W : Readable/Writable
R : Read only
: Initial value
266
Figure 12.4-2 A/D Control Register 1 (ADC1)
bit6 bit5 bit4 bit3
ANS2 ANS1 ANS0
ADI
R/W R/W R/W R/W
This bit is enabled only when software is activated
AD
(ADC2: EXT = 0).
Always 0 for at reading.
0
A/D conversion functions are not activated.
1
A/D conversion functions are activated.
RESV0
Not changed. This does not affect others.
0
1 Not changed. This does not affect others.
ADMV
0 Not during conversion.
1 During conversion.
ADI
Conversion has not been
0
completed.
Conversion has been
1
completed.
ANS2 ANS1
0 0
0 0
0 1
0 1
1 0
1 0
1 1
1 1
Initial value
bit2 bit1 bit0
ADMV RESV0 AD -0000000
R R/W R/W
A/D conversion activation bit
Reserved bit
Converting flag bit
Interrupt request flag bit
During read
Analog input channel selection bits
ANS0
0
AN0 pin (P40/AN0)
AN1 pin (P41/AN1)
1
0
AN2 pin (P42/AN2)
1
AN3 pin (P43/AN3)
0
AN4 pin (P00/INT20/AN4)
AN5 pin (P01/INT21/AN5)
1
0 AN6 pin (P02/INT22 /AN6)
AN7 pin (P03/INT23 /AN7)
1
B
During write
This bit is cleared.
Not changed. This does not
affect others.