MC68HC05JJ6 Datasheet, PDF(117/216 Page) Freescale Semiconductor, Inc – General Release Specification Microcontrollers

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MC68HC05JJ6 Datasheet, PDF (117/216 Pages) Freescale Semiconductor, Inc – General Release Specification Microcontrollers

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Analog Subsystem

COE1

This read-write bit controls the output of comparator 1 to the PB4 pin.

It is not active unless enabled by mask option. Any reads of the COE1

bit location return a logical zero if the analog options mask option is

not selected. The COE1 bit is cleared by a reset of the device.

1 = Enables the output of comparator 1 to be ORed with the PB4

data bit and OLVL bit, if the DDRB4 bit is also set

0 = Disables the output of comparator 1 from affecting the PB4 pin

CMP2

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

zero following a reset of the device.

1 = Voltage on the positive input on comparator 2 higher than the

voltage on the negative input of comparator 2

0 = Voltage on the positive input on comparator 2 lower than the

voltage on the negative input of comparator 2

CMP1

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

zero following a reset of the device.

1 = Voltage on the positive input on comparator 1 higher than the

voltage on the negative input of comparator 1

0 = Voltage on the positive input on comparator 1 lower than the

voltage on the negative input of comparator 1

MC68HC05JJ6/MC68HC05JP6 â Rev. 3.2

Freescale Semiconductor

Analog Subsystem

General Release Specification

117

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