HT45F0057 datasheet(21/81 Pages) HOLTEK

21 / 81 page

Rev. 1.30

May 17, 2022

Rev. 1.30

May 17, 2022

HT45F0057

Induction Cooker Flash MCU

HT45F0057

Induction Cooker Flash MCU

System Control Registers – CTRL0, CTRL1, CTRL2, CTRL3, CTRL4

These registers are used to provide control over various internal functions. Some of these include the

inverting control of the comparator output signal, TMR0 external clock source selection, peripheral

clock prescaler stage, oscillator stop function control, internal reference voltage selection of the

comparator, etc.

• CTRL0 Register

Bit

Name

C2VOINV TMR0ECS

—

PCKPSC

—

LVDO

LVDC

R/W

—

R/W

—

R/W

POR

—

Bit 7

C2VOINV: Inverting control of the comparator 2 output signal

0: Non-inverted

1: Inverted

Bit 6

TMR0ECS: Select TMR0 external clock source

0: TMR0 pin

1: INT0

Bit 5~4

Unimplemented, read as “0”

Bit 3

PCKPSC: Peripheral clock prescaler stage

fPCK=

0: fSYS/2048

1: fSYS/4096

Bit 2

Unimplemented, read as “0”

Bit 1

LVDO: Low voltage detector output

0: Normal voltage

1: Low voltage detected

Bit 0

LVDC: Low voltage detector control

0: Disable

1: Enable

• CTRL1 Register

Bit

Name

INTINV

INTS

DBC5

DBC4

DBC3

DBC2

DBC1

DBC0

R/W

POR

Bit 7

INTINV: Inverting control of the de-bounced external interrupt input signal

0: Non-inverted

1: Inverted

Bit 6

INTS: Select external interrupt source

0: INT

1: Comparator 0 output “C0VO”

Bit 5~0

DBC5~DBC0: Select external interrupt input de-bounce time (fSYS=8MHz)

000000: bypass digital de-bounce circuit

000001: 0~1/fSYS, about 0.125μs

000010:1/fSYS~2/fSYS, about 0.25μs

101111: 46/fSYS~47/fSYS, about 5.875μs

11xxxx: 47/fSYS~48/fSYS, about 6μs

HT45F0057 Datasheet(PDF) 21 Page - Holtek Semiconductor Inc

HT45F0057 Datasheet(HTML) 21 Page - Holtek Semiconductor Inc

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