cs5535 National Semiconductor Corporation, cs5535 Datasheet - Page 344

• Manufacturer Part Number: cs5535
• Description: Geode Cs5535 Companion Multi-function South Bridge
• Manufacturer: National Semiconductor Corporation

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PIC Register Descriptions
5.9.2.9
I/O Port
Type
Reset Value
This register is accessible only after the appropriate command is written to OCW3.
5.9.2.10
I/O Port
Type
Reset Value
This register is accessible only after the appropriate command is written to OCW3.
IRQ7_15STS
IRQ7_15IS
Bit
1:0
Bit
7
6
5
4
3
2
1
0
7
7
Interrupt Request Register (PIC_IRR)
In-Service Register (PIC_ISR)
Name
REG_READ
Name
IRQ7_15STS
IRQ6_14STS
IRQ5_13STS
IRQ4_12STS
IRQ3_11STS
IRQ2_10STS
IRQ1_9STS
IRQ0_8STS
IRQ6_14STS
IRQ6_14IS
Master: 020h
Slave:
Master: 020h
Slave:
6
6
0A0h
RO
00h
0A0h
RO
00h
IRQ5_13STS
IRQ5_13IS
Description
Register Read Mode.
00: No operation.
10: Read interrupt request register on next read of I/O Port 020h (master) or 0A0h
01: No operation.
11: Read interrupt service register on next read of I/O Port 020h (master) or 0A0h
Description
IRQ7 / IRQ15 Status (Pending). 0: Yes; 1: No.
IRQ6 / IRQ14 Status (Pending). 0: Yes; 1: No.
IRQ5 / IRQ13 Status (Pending). 0: Yes; 1: No.
IRQ4 / IRQ12 Status (Pending). 0: Yes; 1: No.
IRQ3 / IRQ11 Status (Pending). 0: Yes; 1: No.
IRQ2 / IRQ10 Status (Pending). 0: Yes; 1: No.
IRQ1 / IRQ9 Status (Pending). 0: Yes; 1: No.
IRQ0 / IRQ8 Status (Pending). 0: Yes; 1: No.
PIC_OCW3 Bit Descriptions (Continued)
5
5
(Continued)
(slave).
(slave).
PIC_IRR Bit Descriptions
IRQ4_12STS
PIC_IRR Register Map
PIC_ISR Register Map
IRQ4_12IS
4
4
344
IRQ3_11STS
IRQ3_11IS
3
3
IRQ2_10STS
IRQ2_10IS
2
2
IRQ1_9STS
IRQ1_9IS
1
1
IRQ0_8STS
IRQ0_8IS
Revision 0.8
0
0