xii
S3C825A/P825A MICROCONTROLLER
List of Figures (Continued)
Figure
Title
Page
Number
4-1
Register Description Format .................................................................................. 4-4
5-1
S3C8-Series Interrupt Types.................................................................................. 5-2
5-2
S3C825A Interrupt Structure.................................................................................. 5-4
5-3
ROM Vector Address Area..................................................................................... 5-5
5-4
Interrupt Function Diagram .................................................................................... 5-8
5-5
System Mode Register (SYM)................................................................................ 5-10
5-6
Interrupt Mask Register (IMR)................................................................................ 5-11
5-7
Interrupt Request Priority Groups........................................................................... 5-12
5-8
Interrupt Priority Register (IPR).............................................................................. 5-13
5-9
Interrupt Request Register (IRQ) ........................................................................... 5-14
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/Ceramic 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
Oscillator Control Register (OSCCON) .................................................................. 7-5
7-9
STOP Control Register (STPCON) ........................................................................ 7-7
9-1
Port Group 0 Control Register (PG0CON) ............................................................. 9-4
9-2
Port 2 High-Byte Control Register (P2CONH) ........................................................ 9-6
9-3
Port 2 Low-Byte Control Register (P2CONL).......................................................... 9-6
9-4
Port 2 Pull-up Control Register (P2PUR) ............................................................... 9-7
9-5
Port 2 Interrupt Control Register (P2INT) ............................................................... 9-7
9-6
Port 3 High-Byte Control Register (P3CONH) ........................................................ 9-8
9-7
Port 3 Low-Byte Control Register (P3CONL).......................................................... 9-9
9-8
Port 3 Pull-up Control Register (P3PUR) ............................................................... 9-9
9-9
Port 4 High-Byte Control Register (P4CONH) ........................................................ 9-10
9-10
Port 4 Low-Byte Control Register (P4CONL).......................................................... 9-11
9-11
Port 4 Interrupt Control Register (P4INT) ............................................................... 9-11
9-12
Port 4 Interrupt Pending Control Register (P4PND)................................................ 9-12
9-13
Port 4 Interrupt Edge Selection Register (P4EDGE) .............................................. 9-12
9-14
Port 5 High-Byte Control Register (P5CONH) ........................................................ 9-13
9-15
Port 5 Low-Byte Control Register (P5CONL).......................................................... 9-14
9-16
Port 5 Pull-up Control Register (P5PUR) ............................................................... 9-14
9-17
Port Group 1 Control Register (PG1CON) ............................................................. 9-15