HT56RB688_13 datasheet(2/164 Pages) HOLTEK

2 / 164 page

Table of Contents

Technical Document ...........................................................................7

Features ...............................................................................................7

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

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

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

Pin Description ..................................................................................10

Absolute Maximum Ratings .............................................................12

D.C. Characteristics ..........................................................................13

A.C. Characteristics ..........................................................................16

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

Power-on Reset Characteristics ......................................................18

DC/DC Converter and LDO Electrical Characteristics ...................19

System Architecture .........................................................................21

Clocking and Pipelining....................................................................21

Program Counter..................................................................................................22

Stack ....................................................................................................................23

Arithmetic and Logic Unit

- ALU ...........................................................................23

Program Memory...............................................................................24

Structure...............................................................................................................24

Special Vectors.....................................................................................................24

Look-up Table.......................................................................................................26

Table Program Example .....................................................................................26

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

Structure...............................................................................................................28

General Purpose Data Memory ............................................................................28

Special Purpose Data Memory .............................................................................28

Display Memory....................................................................................................28

Special Function Registers ..............................................................30

Indirect Addressing Registers

- IAR0, IAR1..........................................................30

Memory Pointers

- MP0, MP1..............................................................................30

Bank Pointer

- BP ................................................................................................31

Accumulator

- ACC ..............................................................................................31

Rev. 1.10

April 15, 2013

Contents

HT56RB688 Datasheet(PDF) 2 Page - Holtek Semiconductor Inc