Intel CONTROLLERS 413808 - Manual (Page 617)

Intel ® 413808 and 413812 I/O Controllers in TPER Mode
October 2007 Developer’s Manual
Order Number: 317805-001US 617
Interrupt Controller Unit—Intel
®
413808 and 413812
10.7.24 FIQ Interrupt Source Register 3 — FINTSRC3
The FIQ Interrupt Source register 3 is a 32-bit Coprocessor 6 control register used to
specify which interrupts that are steered to the internal FIQ exception are unmasked by
the INTCTL3 register and active. The INTSTR3 control register is used to steer
individual interrupts to the FIQ exception.
The FINTSRC3 register may be used by an Interrupt Service Routine (ISR) to
determine quickly the source of an FIQ interrupt.
Table 406. FIQ Interrupt Source Register 3 — FINTSRC3 (Sheet 1 of 2)
Bit Default Description
31 0
2
HPI Interrupt
0 = Not Interrupting or Not steered to internal FIQ exception or masked by INTCTL3
1 = Interrupting and steered to internal FIQ exception and unmasked by INTCTL3
30:18 0
2
Reserved.
17 0
2
Inbound MSI Interrupt
0 = Not Interrupting or Not steered to internal FIQ exception or masked by INTCTL3
1 = Interrupting and steered to internal FIQ exception and unmasked by INTCTL3
16 0
2
Reserved.
15 0
2
MU MSI-X Table Write Interrupt
0 = Not Interrupting or Not steered to internal FIQ exception or masked by INTCTL3
1 = Interrupting and steered to internal FIQ exception and unmasked by INTCTL3
14 0
2
ATUE Interrupt Message D
0 = Not Interrupting or Not steered to internal FIQ exception or masked by INTCTL3
1 = Interrupting and steered to internal FIQ exception and unmasked by INTCTL3
13 0
2
ATUE Interrupt Message C
0 = Not Interrupting or Not steered to internal FIQ exception or masked by INTCTL3
1 = Interrupting and steered to internal FIQ exception and unmasked by INTCTL3
12 0
2
ATUE Interrupt Message B
0 = Not Interrupting or Not steered to internal FIQ exception or masked by INTCTL3
1 = Interrupting and steered to internal FIQ exception and unmasked by INTCTL3
11 0
2
ATUE Interrupt Message A
0 = Not Interrupting or Not steered to internal FIQ exception or masked by INTCTL3
1 = Interrupting and steered to internal FIQ exception and unmasked by INTCTL3
10:08 0
2
Reserved.
07 0
2
TPMI 0 Outbound Interrupt.
0 = 0 = Not Interrupting or Not steered to internal FIQ exception or masked by INTCTL3
1 = 1 = Interrupting and steered to internal FIQ exception and unmasked by INTCTL3
06:05 0
2
Reserved.
Memory
Coprocessor
Attributes
Attributes
28 24 20 16 12 8 4 0 31
ro ro ro ro ro ro ro ro ro ro ro ro ro ro ro ro ro ro ro ro ro ro ro ro ro ro ro ro ro ro ro ro
na na na na na na na na na na na na na na na na na na na na na na na na na na na na na na na na
Attribute Legend:
RV = Reserved
PR = Preserved
RS = Read/Set
RW = Read/Write
RC = Read Clear
RO = Read Only
NA = Not Accessible
Intel XScale ® processor Coprocessor
address
CP6, Page 7, Register 3