XC68HC705JJ7 Motorola, XC68HC705JJ7 Datasheet - Page 121
XC68HC705JJ7
Manufacturer Part Number
XC68HC705JJ7
Description
MICROCONTROLLER
Manufacturer
Motorola
Datasheet
1.XC68HC705JJ7.pdf
(242 pages)
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MC68HC705JJ7 • MC68HC705JP7 — REV 4
MOTOROLA
COE1
CMP2
CMP1
This read-write bit controls the output of comparator 1 to the PB4 pin.
It is not active unless the OPT bit in the COPR at location $1FF0 is
set. Any reads of the COE1 bit location return a logic 0 if the OPT bit
is clear. The COE1 bit is cleared by a reset of the device.
This read-only bit shows the state of comparator 2 during the time that
the bit is read. This bit is therefore the current state of the comparator
without any latched history. The CMP2 bit will be high if the voltage
on the PB0/AN0 pin is greater than the voltage on the PB1/AN1 pin,
regardless of the state of the INV bit in the AMUX register. Since a
reset disables comparator 2, this bit returns a logic 0 following a reset
of the device.
This read-only bit shows the state of comparator 1 during the time that
the bit is read. This bit is therefore the current state of the comparator
without any latched history. The CMP1 bit will be high if the voltage
on the PB2/AN2 pin is greater than the voltage on the PB3/AN3/TCAP
pin, regardless of the state of the INV bit in the AMUX register. Since
a reset disables comparator 1, this bit returns a logic 0 following a
reset of the device.
1 = Enables the output of comparator 1 to be ORed with the PB4
0 = Disables the output of comparator 1 from affecting the PB4 pin
1 = The voltage on the positive input on comparator 2 is higher than
0 = The voltage on the positive input on comparator 2 is lower than
1 = The voltage on the positive input on comparator 1 is higher than
0 = The voltage on the positive input on comparator 1 is lower than
data bit and OLVL bit, if the DDRB4 bit is also set
the voltage on the negative input of comparator 2.
the voltage on the negative input of comparator 2.
the voltage on the negative input of comparator 1.
the voltage on the negative input of comparator 1.
Analog Subsystem
Analog Status Register
Advance Information
Analog Subsystem
121
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