Table of Contents
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S3C8/S3F8-Series Microcontrollers ........................................................................................................... 1-1
S3F80JB Microcontroller ............................................................................................................................ 1-1
Features ..................................................................................................................................................... 1-2
Block Diagram (32-pin package) ................................................................................................................ 1-3
Block Diagram (44-pin package) ................................................................................................................ 1-4
Pin Assignments......................................................................................................................................... 1-5
Pin Circuits ................................................................................................................................................. 1-10
Overview .................................................................................................................................................... 2-1
Program Memory........................................................................................................................................ 2-2
Register Architecture .................................................................................................................................. 2-5
Register Page Pointer (PP)................................................................................................................ 2-7
Register Set1 ..................................................................................................................................... 2-8
Register Set 2 .................................................................................................................................... 2-8
Prime Register Space ........................................................................................................................ 2-9
Working Registers.............................................................................................................................. 2-10
Using the Register Pointers ............................................................................................................... 2-11
Register Addressing ................................................................................................................................... 2-13
Common Working Register Area (C0H-CFH).................................................................................... 2-15
4-Bit Working Register Addressing .................................................................................................... 2-16
8-Bit Working Register Addressing .................................................................................................... 2-18
System and User Stacks ............................................................................................................................ 2-20
Overview .................................................................................................................................................... 3-1
Register Addressing Mode (R)........................................................................................................... 3-2
Indirect Register Addressing Mode (IR) ............................................................................................. 3-3
Indexed Addressing Mode (X)............................................................................................................ 3-7
Direct Address Mode (DA) ................................................................................................................. 3-10
Indirect Address Mode (IA) ................................................................................................................ 3-12
Relative Address Mode (RA).............................................................................................................. 3-13
Immediate Mode (IM)......................................................................................................................... 3-14
Overview .................................................................................................................................................... 4-1
S3F80JB MICROCONTROLLER
Table of Contents
Part I - Programming Model
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