HT67F4892 datasheet(2/188 Pages) HOLTEK

2 / 188 page

Rev. 1.00

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Rev. 1.00

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HT67F4892

Enhanced A/D Flash MCU with LCD & EEPROM

HT67F4892

Enhanced A/D Flash MCU with LCD & EEPROM

Table of Contents

Features............................................................................................................ 6

CPU Featu�es ......................................................................................................................... �

Pe�iphe�al Featu�es................................................................................................................. 7

General Description......................................................................................... 8

Block Diagram.................................................................................................. 8

Pin Assignment................................................................................................ 9

Pin Description ...............................................................................................11

Absolute Maximum Ratings.......................................................................... 14

D.C. Characteristics....................................................................................... 15

A.C. Characteristics....................................................................................... 17

A/D Converter Electrical Characteristics..................................................... 18

Reference Voltage Characteristics............................................................... 18

LVD/LVR Electrical Characteristics.............................................................. 19

Power-on Reset Characteristics................................................................... 19

System Architecture...................................................................................... 20

Clocking and Pipelining......................................................................................................... �0

P�og�a� Counte�................................................................................................................... �1

Stack ..................................................................................................................................... �1

A�ith�etic and Logic Unit – ALU ........................................................................................... ��

Flash Program Memory................................................................................. 23

St�uctu�e................................................................................................................................ �3

Special Vecto�s ..................................................................................................................... �3

Look-up Ta�le ....................................................................................................................... �3

Ta�le P�og�a� Exa�ple........................................................................................................ ��

In Ci�cuit P�og�a��ing – ICP ............................................................................................... �5

On-Chip De�ug Suppo�t – OCDS ......................................................................................... ��

RAM Data Memory......................................................................................... 27

St�uctu�e................................................................................................................................ �7

Data Me�o�y Add�essing...................................................................................................... �8

Gene�al Pu�pose Data Me�o�y ............................................................................................ �8

Special Pu�pose Data Me�o�y ............................................................................................. �8

Special Function Register Description........................................................ 30

Indi�ect Add�essing Registe�s – IAR0� IAR1� IAR� ............................................................... 30

Me�o�y Pointe�s – MP0� MP1L� MP1H� MP�L� MP�H......................................................... 30

Accu�ulato� – ACC .............................................................................................................. 31

P�og�a� Counte� Low Registe� – PCL ................................................................................. 3�

Look-up Ta�le Registe�s – TBLP� TBHP� TBLH .................................................................... 3�

Status Registe� – STATUS ................................................................................................... 3�

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