xii S3C8275X/F8275X/C8278X/F8278X/C8274X/F8274X MICROCONTROLLER
List of Figures Figure Title Page
Number Number
5-1 S3C8-Series Interrupt Types.....................................................................................5-2
5-2 S3C8275X/C8278X/C8274X Interrupt Structure.......................................................5-3
5-3 ROM Vector Address Area........................................................................................ 5-4
5-4 Interrupt Function Diagram........................................................................................5-7
5-5 System Mode Register (SYM)................................................................................... 5-9
5-6 Interrupt Mask Register (IMR) ................................................................................... 5-10
5-7 Interrupt Request Priority Groups.............................................................................. 5-11
5-8 Interrupt Priority Register (IPR)................................................................................. 5-12
5-9 Interrupt Request Register (IRQ)............................................................................... 5-13
6-1 System Flags Register (FLAGS) ............................................................................... 6-6
7-1 Crystal/Ceramic Oscillator (fx)...................................................................................7-2
7-2 External Oscillator (fx)................................................................................................7-2
7-3 RC Oscillator (fx)........................................................................................................7-2
7-4 Crystal Oscillator (fxt).................................................................................................7-2
7-5 External Oscillator (fxt)...............................................................................................7-2
7-6 System Clock Circuit Diagram................................................................................... 7-3
7-7 System Clock Control Register (CLKCON)............................................................... 7-4
7-8 Clock Output Control Register (CLOCON)................................................................ 7-5
7-9 Clock Output Block Diagram...................................................................................... 7-5
7-10 Oscillator Control Register (OSCCON) .....................................................................7-6
7-11 STOP Control Register (STPCON)............................................................................7-8
9-1 S3C8275X/C8278X/C8274X I/O Port Data Register Format.................................... 9-2
9-2 Port 0 High-Byte Control Register (P0CONH)........................................................... 9-4
9-3 Port 0 Low-Byte Control Register (P0CONL)............................................................ 9-4
9-4 Port 0 Pull-up Control Register (P0PUR) ..................................................................9-5
9-5 External Interrupt Control Register, Low Byte (EXTICONL)...................................... 9-5
9-6 External Interrupt Pending Register (EXTIPND) .......................................................9-6
9-7 Port 1 High-Byte Control Register (P1CONH)........................................................... 9-8
9-8 Port 1 Low-Byte Control Register (P1CONL)............................................................ 9-8
9-9 Port 1 Pull-up Control Register (P1PUR) ..................................................................9-9
9-10 External Interrupt Control Register, High Byte (EXTICONH).................................... 9-9
9-11 External Interrupt Control Register, Low Byte (EXTICONL)......................................9-10
9-12 External Interrupt Pending Register (EXTIPND)....................................................... 9-10
9-13 Port 2 High-byte Control Register (P2CONH)........................................................... 9-11
9-14 Port 2 Low-byte Control Register (P2CONL).............................................................9-12
9-15 Port 2 Pull-up Control Register (P2PUR).................................................................. 9-12
9-16 Port 3 High Byte Control Register (P3CONH)........................................................... 9-13
9-17 Port 3 Low Byte Control Register (P3CONL)............................................................ 9-14
9-18 Port 3 Pull-up Control Register (P3PUR).................................................................. 9-14