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xii S3C9228/P9228 MICROCONTROLLERS
List of Figures (Continued)
Figure Title Page
Number Number
5-1 S3C9-Series Interrupt Type ................................................................................................5-1
5-2 Interrupt Function Diagram .................................................................................................5-2
5-3 S3C9228/P9228 Interrupt Structure ....................................................................................5-5
6-1 System Flags Register (FLAGS).........................................................................................6-4
7-1 Crystal/Ceramic Oscillator ..................................................................................................7-2
7-2 External Oscillator ..............................................................................................................7-2
7-3 RC Oscillator ......................................................................................................................7-2
7-4 Crystal/Ceramic Oscillator ..................................................................................................7-2
7-5 External Oscillator ..............................................................................................................7-2
7-6 System Clock Circuit Diagram ............................................................................................7-3
7-7 System Clock Control Register (CLKCON) .........................................................................7-4
7-8 Oscillator Control Register (OSCCON) ...............................................................................7-5
7-9 STOP Control Register (STPCON) .....................................................................................7-7
9-1 S3C9228 I/O Port Data Register Format.............................................................................9-2
9-2 Port 0 Control Register (P0CON)........................................................................................9-4
9-3 Port 0 Interrupt Control Register (P0INT)............................................................................9-4
9-4 Port 0 Interrupt Pending Bits (INTPND1.3-.0)......................................................................9-5
9-5 Port 0 Interrupt Edge Selection Register (P0EDGE)............................................................9-5
9-6 Port 0 Pull-up Control Register (P0PUR) ............................................................................9-5
9-7 Port 1 Control Register (P1CON)........................................................................................9-6
9-8 Port 1 Interrupt Control Register (P1INT)............................................................................9-7
9-9 Port 1 Interrupt Pending Bits (INTPND1.7-.4)......................................................................9-7
9-10 Port 1 Interrupt Edge Selection Register (P1EDGE)............................................................9-8
9-11 Port 1 Pull-up Control Register (P1PUR) ............................................................................9-8
9-12 Port 2 Control Register (P2CON)........................................................................................9-9
9-13 Port 2 Pull-up Control Register (P2PUR) ............................................................................9-10
9-14 Port 3 Control Register (P3CON)........................................................................................9-11
9-15 Port 3 Interrupt Control Register (P3INT)............................................................................9-12
9-16 Port 3 Interrupt Pending Bits (INTPND2.5-.4)......................................................................9-12
9-17 Port 3 Interrupt Edge Selection Register (P3EDGE)............................................................9-13
9-18 Port 3 Pull-up Control Register (P3PUR) ............................................................................9-13
9-19 Port 4 High-Byte Control Register (P4CONH) .....................................................................9-14
9-20 Port 4 Low-Byte Control Register (P4CONL).......................................................................9-14
9-21 Port 5 High-Byte Control Register (P5CONH) .....................................................................9-15
9-22 Port 5 Low-Byte Control Register (P5CONL).......................................................................9-15
9-23 Port 6 Control Register (P6CON)........................................................................................9-16