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