Samsung S3F80P5X User Manual page 6

Chapter 6
Overview........................................................................................................................................................6-1
Data Types..............................................................................................................................................6-1
Register Addressing................................................................................................................................6-1
Addressing Modes ..................................................................................................................................6-1
Flags Register (FLAGS) .........................................................................................................................6-6
Flag Descriptions ....................................................................................................................................6-7
Instruction Set Notation...........................................................................................................................6-8
Condition Codes .....................................................................................................................................6-12
Instruction Descriptions ..........................................................................................................................6-13
Chapter 7
Overview........................................................................................................................................................7-1
System Clock Circuit...............................................................................................................................7-1
Clock Status During Power-Down Modes ..............................................................................................7-3
System Clock Control Register (CLKCON) ............................................................................................7-4
Chapter 8
Overview........................................................................................................................................................8-1
Reset Sources ........................................................................................................................................8-1
Reset Mechanism ...................................................................................................................................8-4
Watch dog timer Reset ...........................................................................................................................8-4
LVD Reset...............................................................................................................................................8-4
Internal Power-On Reset ........................................................................................................................8-5
External Interrupt Reset ..........................................................................................................................8-6
Stop Error Detection & Recovery............................................................................................................8-7
Power-Down Modes ......................................................................................................................................8-8
Idle Mode ................................................................................................................................................8-8
IDLE Mode Release................................................................................................................................8-8
Back-up Mode.........................................................................................................................................8-9
Stop Mode...............................................................................................................................................8-11
Sources to Release Stop Mode ..............................................................................................................8-12
Using IPOR to Release Stop Mode ........................................................................................................8-12
Using an External Interrupt to Release Stop Mode ................................................................................8-12
SED&R (Stop Error Detect and Recovery).............................................................................................8-13
System Reset Operation.........................................................................................................................8-14
Hardware Reset Values..........................................................................................................................8-15
Recommendation for Unusued Pins .......................................................................................................8-19
Summary Table of Back-up Mode, Stop Mode, and Reset Status.........................................................8-20
vi
Table of Contents
Instruction Set
Clock and Power Circuit
RESET
(Continued)
S3F80P5_UM_REV 1.00 MICROCONTROLLER