TC1796
Peripheral Units (Vol. 2 of 2)
Fast Analog-to-Digital Converter (FADC)
User’s Manual 26-45 V2.0, 2007-07
FADC, V2.0
The Channel x Analog Control Register ACRx contains the bits that control the analog
input stage.
ACRx (x = 0-3)
Channel x Analog Control Register
(30
H
+x*4
H
) Reset Value: 0000 0000
H
31 30 29 28 27 26 25 24 23 22 21 20 19 18 17 16
0
r
1514131211109876543210
0 CALGAIN
CAL
OFF
3
0
CALOFF
[2:0]
0ENNENPGAIN
rrwrwr rw r rwrwrw
Field Bits Type Description
GAIN [1:0] rw Amplifier Gain
This bit field determines the amplifier gain for
channel x.
00
B
The selected amplifier gain is 1.
01
B
The selected amplifier gain is 2.
10
B
The selected amplifier gain is 4.
11
B
The selected amplifier gain is 8.
ENP 2rwEnable Positive Input
This bit enables the voltage measurement on the
FAINxP analog input.
0
B
Analog input FAINxP is high-impedance. The
upper half of the measuring range is not
available.
1
B
Analog input FAINxP line is connected to the
channel amplifier. The upper half of the
measuring range is available.
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