Samsung S3C80A5B User Manual page 12

Figure
Number
1-1
1-2
1-3
1-4
1-5
1-6
1-7
2-1
2-2
2-3
2-4
2-5
2-6
2-7
2-8
2-9
2-10
2-11
2-12
2-13
2-14
2-15
3-1
3-2
3-3
3-4
3-5
3-6
3-7
3-8
3-9
3-10
3-11
3-12
3-13
3-14
4-1
S3C80A5B MICROCONTROLLER
List of Figures
Block Diagram......................................................................................................................................1-3
Pin Assignment Diagram (24-Pin SOP/SDIP Package) .........................................................1-4
Pin Circuit Type 1 (Port 0)................................................................................................................1-6
Pin Circuit Type 2 (Port 1)................................................................................................................1-7
Pin Circuit Type 3 (P2.0)...................................................................................................................1-7
Pin Circuit Type 4 (P2.1)...................................................................................................................1-8
Pin Circuit Type 5 (P2.2)...................................................................................................................1-8
Program Memory Address Space..................................................................................................2-2
Internal Register File Organization.................................................................................................2-4
Register Page Pointer (PP)..............................................................................................................2-5
Set 1, Set 2 and Prime Area Register Map ................................................................................2-7
8-Byte Working Register Areas (Slices)......................................................................................2-8
Contiguous 16-Byte Working Register Block.............................................................................2-9
Non-Contiguous 16-Byte Working Register Block....................................................................2-10
16-Bit Register Pair ............................................................................................................................2-11
Register File Addressing...................................................................................................................2-12
Common Working Register Area....................................................................................................2-13
4-Bit Working Register Addressing ...............................................................................................2-15
4-Bit Working Register Addressing Example.............................................................................2-15
8-Bit Working Register Addressing ...............................................................................................2-16
8-Bit Working Register Addressing Example.............................................................................2-17
Stack Operations ................................................................................................................................2-18
Register Addressing...........................................................................................................................3-2
Working Register Addressing..........................................................................................................3-2
Indirect Register Addressing to Register File.............................................................................3-3
Indirect Register Addressing to Program Memory ....................................................................3-4
Indirect Working Register Addressing to Register File............................................................3-5
Indirect Working Register Addressing to Program or Data Memory ...................................3-6
Indexed Addressing to Register File .............................................................................................3-7
Indexed Addressing to Program or Data Memory with Short Offset....................................3-8
Indexed Addressing to Program or Data Memory .....................................................................3-9
Direct Addressing for Load Instructions .......................................................................................3-10
Direct Addressing for Call and Jump Instructions .....................................................................3-11
Indirect Addressing.............................................................................................................................3-12
Relative Addressing............................................................................................................................3-13
Immediate Addressing.......................................................................................................................3-14
Register Description Format ............................................................................................................4-4
Title Page
Number
ix