cs5535 National Semiconductor Corporation, cs5535 Datasheet - Page 345

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

Revision 0.8
PIC Register Descriptions
5.9.2.11
I/O Port
Type
Reset Value
Note 1. If ICW1 bit 3 in the PIC is set as level, it overrides the settings of this bit. This bit is provided to configure a PCI
IRQ7_SEL
Bit
Bit
7
6
5
4
3
2
1
0
7
6
5
4
3
2
1
0
7
interrupt mapped to IRQ[x] on the PIC as level-sensitive (shared).
Interrupt Edge/Level Select 1 (PIC_INT_SEL1)
Name
IRQ7_15IS
IRQ6_14IS
IRQ5_13IS
IRQ4_12IS
IRQ3_11IS
IRQ2_10IS
IRQ1_9IS
IRQ0_8IS
Name
IRQ7_SEL
IRQ6_SEL
IRQ5_SEL
IRQ4_SEL
IRQ3_SEL
RSVD
IRQ1_SEL
RSVD
IRQ6_SEL
6
4D0h
R/W
00h
IRQ5_SEL
Description
IRQ7 / IRQ15 In-Service. 0: No; 1: Yes.
IRQ6 / IRQ14 In-Service. 0: No; 1: Yes.
IRQ5 / IRQ13 In-Service. 0: No; 1: Yes.
IRQ4 / IRQ12 In-Service. 0: No; 1: Yes.
IRQ3 / IRQ11 In-Service. 0: No; 1: Yes.
IRQ2 / IRQ10 In-Service. 0: No; 1: Yes.
IRQ1 / IRQ9 In-Service. 0: No; 1: Yes.
IRQ0 / IRQ8 In-Service. 0: No; 1: Yes.
Description
IRQ7 Edge or Level Select. Selects PIC IRQ7 sensitivity configuration.
0: Edge; 1: Level. (Note 1)
IRQ6 Edge or Level Select. Selects PIC IRQ6 sensitivity configuration.
0: Edge; 1: Level. (Note 1)
IRQ5 Edge or Level Select. Selects PIC IRQ5 sensitivity configuration.
0: Edge; 1: Level. (Note 1)
IRQ4 Edge or Level Select. Selects PIC IRQ4 sensitivity configuration.
0: Edge; 1: Level. (Note 1)
IRQ3 Edge or Level Select. Selects PIC IRQ7 sensitivity configuration.
0: Edge; 1: Level. (Note 1)
Reserved. Write to 0.
IRQ1 Edge or Level Select. Selects PIC IRQ1 sensitivity configuration.
0: Edge; 1: Level. (Note 1)
Reserved. Write to 0.
5
(Continued)
PIC_INT_SEL1 Bit Descriptions
PIC_INT_SEL1 Register Map
PIC_ISR Bit Descriptions
IRQ4_SEL
4
345
IRQ3_SEL
3
RSVD
2
IRQ1_SEL
1
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RSVD
0