HT45FH4M
Lithium Battery Backup Power ASSP MCU
TM Exteꢁnal Pins................................................................................................................... ꢃ4
TM Inpꢀt/Oꢀtpꢀt Pin Contꢁol Registeꢁ................................................................................... ꢃꢃ
Pꢁogꢁamming Consideꢁations................................................................................................ ꢃ7
Standard Type TM – STM .............................................................................. 58
Standaꢁd TM Opeꢁation......................................................................................................... ꢃ8
Standaꢁd Tꢂpe TM Registeꢁ Descꢁiption ............................................................................... ꢃ8
Standaꢁd Tꢂpe TM Opeꢁating Modes.................................................................................... 6ꢆ
Periodic Type TM – PTM................................................................................ 72
Peꢁiodic TM Opeꢁation .......................................................................................................... 7ꢅ
Peꢁiodic Tꢂpe TM Registeꢁ Descꢁiption................................................................................. 7ꢅ
Peꢁiodic Tꢂpe TM Opeꢁation Modes...................................................................................... 77
Analog to Digital Converter .......................................................................... 86
A/D Oveꢁview ........................................................................................................................ 86
A/D Conveꢁteꢁ Registeꢁ Descꢁiption...................................................................................... 86
A/D Conveꢁteꢁ Data Registeꢁs – ADRLꢄ ADRH ..................................................................... 87
A/D Conveꢁteꢁ Contꢁol Registeꢁs – ADCR0ꢄ ADCR1ꢄ ACERL............................................... 87
A/D Opeꢁation ....................................................................................................................... 91
A/D Inpꢀt Pins ....................................................................................................................... 9ꢅ
Sꢀmmaꢁꢂ of A/D Conveꢁsion Steps....................................................................................... 9ꢆ
Pꢁogꢁamming Consideꢁations................................................................................................ 94
A/D Tꢁansfeꢁ Fꢀnction ........................................................................................................... 94
A/D Pꢁogꢁamming Example................................................................................................... 9ꢃ
Complementary PWM Output....................................................................... 97
Over Current and Voltage Protection .......................................................... 98
OCP/OVP Registeꢁ ............................................................................................................... 99
OCP Operational Amplifier Offset Cancellation Function.................................................... 104
OCP Compaꢁatoꢁ Offset Cancellation Fꢀnction .................................................................. 10ꢃ
OVP Compaꢁatoꢁ Offset Cancellation Fꢀnction................................................................... 10ꢃ
Interrupts...................................................................................................... 106
Inteꢁꢁꢀpt Registeꢁs............................................................................................................... 106
Inteꢁꢁꢀpt Registeꢁ Contents................................................................................................. 106
Inteꢁꢁꢀpt Opeꢁation...............................................................................................................111
Exteꢁnal Inteꢁꢁꢀpt..................................................................................................................11ꢆ
OVP Inteꢁꢁꢀpt .......................................................................................................................11ꢆ
OCP Inteꢁꢁꢀpt.......................................................................................................................11ꢆ
Mꢀlti-fꢀnction Inteꢁꢁꢀpt .........................................................................................................114
A/D Conveꢁteꢁ Inteꢁꢁꢀpt........................................................................................................114
Time Base Inteꢁꢁꢀpts............................................................................................................114
EEPROM Inteꢁꢁꢀpt ...............................................................................................................116
LVD Inteꢁꢁꢀpt........................................................................................................................116
TM Inteꢁꢁꢀpts........................................................................................................................116
Inteꢁꢁꢀpt Wake-ꢀp Fꢀnction.................................................................................................117
Pꢁogꢁamming Consideꢁations...............................................................................................117
Rev. 1.10
4
�anꢀaꢁꢂ 1ꢃꢄ ꢅ01ꢆ
HOLTEK [ HOLTEK SEMICONDUCTOR INC ]
