Samsung S3P80C5 User Manual page 8

Chapter 7
Overview .................................................................................................................................................7-1
System Clock Circuit .......................................................................................................................7-1
Clock Status During Power-Down Modes.........................................................................................7-2
System Clock Control Register (CLKCON) ......................................................................................7-3
Chapter 8
System Reset ..........................................................................................................................................8-1
LVD Reset.......................................................................................................................................8-1
Interrupt with Reset (INTR)..............................................................................................................8-2
Watch-Dog Timer Reset..................................................................................................................8-2
Power-on Reset (POR)....................................................................................................................8-2
System Reset Operation .................................................................................................................8-3
Hardware Reset Values ...................................................................................................................8-4
Power-Down Modes.................................................................................................................................8-6
Stop mode.......................................................................................................................................8-6
Using POR to Release Stop Mode...................................................................................................8-6
Using an INTR to Release Stop Mode .............................................................................................8-6
Idle Mode ........................................................................................................................................8-9
Summary Table of Stop Mode, and Idle Mode.................................................................................8-10
Chapter 9
Overview .................................................................................................................................................9-1
Port Data Registers .........................................................................................................................9-2
Pull-Up Resistor Enable Registers...................................................................................................9-2
Port 0 ..............................................................................................................................................9-4
Port 0 Interrupt Enable Register (P0INT) .........................................................................................9-5
Port 0 Interrupt Pending Register (P0PND)......................................................................................9-5
Port 1 ..............................................................................................................................................9-7
Port 2 ..............................................................................................................................................9-9
Chapter 10
Module Overview.....................................................................................................................................10-1
Basic Timer Control Register (BTCON) ...............................................................................................10-1
Basic Timer Function Description ........................................................................................................10-3
Timer 0 Control Register (T0CON) ......................................................................................................10-3
Timer 0 Function Description...............................................................................................................10-5
S3P80C5/C80C5/C80C8
Table of Contents
Part II Hardware Descriptions
Clock Circuit
RESET and Power-Down RESET
I/O Ports
Basic Timer and Timer 0
MICROCONTROLLER
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