cs5535 National Semiconductor Corporation, cs5535 Datasheet - Page 104

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

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PIC Functional Description
Input #
Input 0
Input 1
N/A
Input 3
Input 4
Input 5
Input 6
Input 7
Input 8
Input 9
Input 10
Input 11
Input 12
Input 13
Input 14
Input 15
Unrestricted Y
Input 0
Input 1
Input 2
Input 3
Input 4
Input 5
Input 6
Input 7
Input 8
Input 9
Input 10
Input 11
Input 12
Input 13
Input 14
Input 15
Primary Sources
8254 Timer IRQ
KEL IRQ1
None (Slave Controller)
Reserved - Grounded
Reserved - Grounded
Reserved - Grounded
Reserved - Grounded
Reserved - Grounded
RTC Periodic IRQ
Reserved - Grounded
Reserved - Grounded
Reserved - Grounded
KEL IRQ12
Float Point Error IRQ
Primary IDE Channel IRQ
Reserved - Grounded
Source
Software Generated IRQ
USB1 IRQ
USB2 IRQ
RTC Alarm
Audio IRQ
Power Management SCI
NAND Flash Ready
NAND Flash Distraction
Reserved, Grounded
Reserved, Grounded
Reserved, Grounded
Reserved, Grounded
SMB Controller IRQ
KEL Emulation IRQ
UART 1 IRQ
UART 2 IRQ
Table 4-13. IRQ Map - Unrestricted Sources Y
Table 4-12. IRQ Map - Primary and LPC
(Continued)
LPC Sources
LPC IRQ0
LPC IRQ1
None
LPC IRQ3
LPC IRQ4
LPC IRQ5
LPC IRQ6
LPC IRQ7
LPC IRQ8
LPC IRQ9
LPC IRQ10
LPC IRQ11
LPC IRQ12
LPC IRQ13
LPC IRQ14
LPC IRQ15
Comment
This is a pulse from the RTC. Must use edge triggered inter-
rupt, that is, level interrupt will not work.
OR of all audio codec interrupts and master interrupts.
OR of all possible power management System Control Inter-
rupts (SCIs).
Ready to perform NAND write or read.
NOR access occurred during NAND operation causing a
NAND abort or distraction.
104
Legacy IRQ
8254 Timer
Keyboard
None
UART
UART
Parallel Port 2
Floppy
Parallel Port1
RTC
Undefined
Undefined
Undefined
Mouse
FPU
Primary IDE
Secondary IDE
Revision 0.8