
%
!"
&
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4-1
5-1
5-2
5-3
5-4
5-5
5-6
5-7
5-8
5-9
6-1
7-1
7-2
7-3
7-4
7-5
7-6
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
Register Description Format.......................................................................................4-4
S3C8-Series Interrupt Types......................................................................................5-2
S3C8238/C8235/F8235 Interrupt Structure................................................................5-4
ROM Vector Address Area.........................................................................................5-5
Interrupt Function Diagram.........................................................................................5-8
System Mode Register (SYM)....................................................................................5-10
Interrupt Mask Register (IMR)....................................................................................5-11
Interrupt Request Priority Groups...............................................................................5-12
Interrupt Priority Register (IPR)..................................................................................5-13
Interrupt Request Register (IRQ) ...............................................................................5-14
System Flags Register (FLAGS)................................................................................6-6
Main Oscillator Circuit (Crystal or Ceramic Oscillator)...............................................7-1
Main Oscillator Circuit (RC Oscillator)........................................................................7-1
System Clock Circuit Diagram....................................................................................7-2
System Clock Control Register (CLKCON)................................................................7-3
Oscillator Control Register (OSCCON)......................................................................7-4
STOP Control Register (STPCON)............................................................................7-4
Port 0 High-Byte Control Register (P0CONH)............................................................9-4
Port 0 Low-Byte Control Register (P0CONL).............................................................9-5
Port 0 Interrupt Control Register (P0INT)...................................................................9-6
Port 0 Interrupt Pending Register (P0PND)................................................................9-6
Port 1 High-Byte Control Register (P1CONH)............................................................9-8
Port 1 Low-Byte Control Register (P1CONL).............................................................9-9
Port 1 Pull-up Control Register (P1PUP)....................................................................9-10
Port 2 High-Byte Control Register (P2CONH)............................................................9-11
Port 2 Low-Byte Control Register (P2CONL).............................................................9-12
Port 3 Control Register (P3CON)...............................................................................9-14
Port 3 Interrupt Control Register (P3INT)...................................................................9-15
Port 3 Interrupt Pending Register (P3PND)................................................................9-15
Port 4 Control Register (P4CON)...............................................................................9-16