HT46R068B/HT46R069B
Enhanced A/D Type 8-bit OTP MCU
Analog to Digital Converter........................................................................................ 61
A/D Oveꢁview .....................................................................................................................ꢄ1
A/D Conveꢁteꢁ Data Registeꢁs – ADRLꢅ ADRH ..................................................................ꢄ1
A/D Conveꢁteꢁ Contꢁol Registeꢁs – ADCRꢅ ACSRꢅ ANCSR1ꢅ ANCSR0.............................ꢄ1
A/D Inpꢀt Pins ....................................................................................................................ꢄ7
Sꢀmmaꢁꢂ of A/D Conveꢁsion Steps....................................................................................ꢄ7
Pꢁogꢁamming Consideꢁations.............................................................................................ꢄ8
A/D Tꢁansfeꢁ Fꢀnction ........................................................................................................ꢄ8
A/D Pꢁogꢁamming Example................................................................................................ꢄ9
Interrupts...................................................................................................................... 72
Inteꢁꢁꢀpt Registeꢁ ...............................................................................................................7ꢃ
Inteꢁꢁꢀpt Opeꢁation.............................................................................................................74
Inteꢁꢁꢀpt Pꢁioꢁitꢂ..................................................................................................................75
Exteꢁnal Inteꢁꢁꢀpt................................................................................................................7ꢄ
Timeꢁ/Event Coꢀnteꢁ Inteꢁꢁꢀpt............................................................................................7ꢄ
Mꢀlti-fꢀnction Inteꢁꢁꢀpt .......................................................................................................7ꢄ
Pꢁogꢁamming Consideꢁations.............................................................................................77
LCD SCOM Function................................................................................................... 78
LCD Opeꢁation ..................................................................................................................78
LCD Bias Contꢁol ...............................................................................................................79
Serial Interface Module – SIM..................................................................................... 80
SPI Inteꢁface ......................................................................................................................80
SPI Registeꢁs .....................................................................................................................8ꢃ
SPI Commꢀnication ..........................................................................................................85
IꢃC Inteꢁface .......................................................................................................................87
IꢃC Registeꢁs ......................................................................................................................88
IꢃC Bꢀs Commꢀnication .....................................................................................................9ꢃ
IꢃC Bꢀs Staꢁt Signal............................................................................................................93
Slave Addꢁess ....................................................................................................................93
IꢃC Bꢀs Read/Wꢁite Signal .................................................................................................94
IꢃC Bꢀs Slave Addꢁess Acknowledge Signal......................................................................94
IꢃC Bꢀs Data and Acknowledge Signal ..............................................................................94
Peripheral Clock Output ............................................................................................. 97
Peꢁipheꢁal Clock Opeꢁation................................................................................................97
SPIA Serial Interface – SPIA....................................................................................... 98
SPIA Inteꢁface Commꢀnication ..........................................................................................98
SPIA Registeꢁs...................................................................................................................98
SPIA Bꢀs Enable/Disable...................................................................................................98
SPIA Opeꢁation ................................................................................................................100
SPIA Configuration Options .............................................................................................10ꢃ
Eꢁꢁoꢁ Detection.................................................................................................................10ꢃ
Pꢁogꢁamming Consideꢁations...........................................................................................10ꢃ
Digital to Analog Converter – DAC ......................................................................... 102
Rev. 1.00
4
�anꢀaꢁꢂ ꢃꢄꢅ ꢃ011
HOLTEK [ HOLTEK SEMICONDUCTOR INC ]
