Datasheet

www.ti.com Comparator_A+ Registers
21.3.1 CACTL1, Comparator_A+ Control Register 1
7 6 5 4 3 2 1 0
CAEX CARSEL CAREFx CAON CAIES CAIE CAIFG
rw-(0) rw-(0) rw-(0) rw-(0) rw-(0) rw-(0) rw-(0) rw-(0)
CAEX Bit 7 Comparator_A+ exchange. This bit exchanges the comparator inputs and inverts the comparator output.
CARSEL Bit 6 Comparator_A+ reference select. This bit selects which terminal the V
CAREF
is applied to.
When CAEX = 0:
0 V
CAREF
is applied to the + terminal
1 V
CAREF
is applied to the - terminal
When CAEX = 1:
0 V
CAREF
is applied to the - terminal
1 V
CAREF
is applied to the + terminal
CAREF Bits 5-4 Comparator_A+ reference. These bits select the reference voltage V
CAREF.
00 Internal reference off. An external reference can be applied.
01 0.25 × V
CC
10 0.50 × V
CC
11 Diode reference is selected
CAON Bit 3 Comparator_A+ on. This bit turns on the comparator. When the comparator is off it consumes no current.
The reference circuitry is enabled or disabled independently.
0 Off
1 On
CAIES Bit 2 Comparator_A+ interrupt edge select
0 Rising edge
1 Falling edge
CAIE Bit 1 Comparator_A+ interrupt enable
0 Disabled
1 Enabled
CAIFG Bit 0 The Comparator_A+ interrupt flag
0 No interrupt pending
1 Interrupt pending
531
SLAU144J–December 2004–Revised July 2013 Comparator_A+
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