HT67F60 datasheet(161/242 Pages) HOLTEK

161 / 242 page

HT67F30/HT67F40/HT67F50/HT67F60

TinyPowerTM A/D Flash Type 8-Bit MCU with LCD & EEPROM

Rev. 1.50

160

March 06 , 2012

Rev. 1.50

161

March 06 , 2012

●

CP1C Register

Bit

Name

C1SEL

C1EN

C1POL

C1OUT

C1OS

—

C1HYEN

R/W

—

R/W

POR

—

Bit 7

C1SEL: Select Comparator pins or I/O pins

0: I/O pin select

1: Comparator pin select

This is the Comparator pin or I/O pin select bit. If the bit is high the comparator will

be selected and the two comparator input pins will be enabled. As a result, these two

pins will lose their I/O pin functions. Any pull-high configuration options associated

with the comparator shared pins will also be automatically disconnected.

Bit 6

C1EN: Comparator On/Off control

0: Off

1: On

This is the Comparator on/off control bit. If the bit is zero the comparator will be

switched off and no power consumed even if analog voltages are applied to its inputs.

For power sensitive applications this bit should be cleared to zero if the comparator is

not used or before the device enters the SLEEP or IDLE mode.

Bit 5

C1POL: Comparator output polarity

0: output not inverted

1: output inverted

This is the comparator polarity bit. If the bit is zero then the C1OUT bit will reflect the

non-inverted output condition of the comparator. If the bit is high the comparator

C1OUT bit will be inverted.

Bit 4

C1OUT: Comparator output bit

C1POL=0

0: C1+ < C1-

1: C1+ > C1-

C1POL=1

0: C1+ > C1-

1: C1+ < C1-

This bit stores the comparator output bit. The polarity of the bit is determined by the

voltages on the comparator inputs and by the condition of the C1POL bit.

Bit 3

C1OS: Output path select

0: C1X pin

1: Internal use

This is the comparator output path select control bit. If the bit is set to "0" and the

C1SEL bit is "1" the comparator output is connected to an external C1X pin. If the bit

is set to "1" or the C1SEL bit is "0" the comparator output signal is only used

internally by the device allowing the shared comparator output pin to retain its normal

I/O operation.

Bit 2~1

unimplemented, read as "0"

Bit 0

C1HYEN: Hysteresis Control

0: Off

1: On

This is the hysteresis control bit and if set high will apply a limited amount of

hysteresis to the comparator, as specified in the Comparator Electrical Characteristics

table. The positive feedback induced by hysteresis reduces the effect of spurious

switching near the comparator threshold.

HT67F60 Datasheet(PDF) 161 Page - Holtek Semiconductor Inc

HT67F60 Datasheet(HTML) 161 Page - Holtek Semiconductor Inc

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