Intel CONTROLLERS 413808 - Manual (Page 609)

Intel ® 413808 and 413812 I/O Controllers in TPER Mode
October 2007 Developer’s Manual
Order Number: 317805-001US 609
Interrupt Controller Unit—Intel
®
413808 and 413812
10.7.19 IRQ Interrupt Source Register 2 — IINTSRC2
The IRQ Interrupt Source register is a 32-bit Coprocessor 6 control register used to
specify which of 32 interrupts that are steered to the internal IRQ exception are
unmasked by the INTCTL2 register and active. The INTSTR2 control register is used to
steer individual interrupts to the IRQ exception.
The IINTSRC2 register may be used by an Interrupt Service Routine (ISR) to determine
quickly the source of an IRQ interrupt.
Table 401. IRQ Interrupt Source Register 2 — IINTSRC2
Bit Default Description
31 0
2
SRAM Memory Controller Unit Error Interrupt
0 = Not Interrupting or Not steered to internal IRQ exception or masked by INTCTL2
1 = Interrupting and steered to internal IRQ exception and unmasked by INTCTL2
30 0
2
South Internal Bus Bridge Error Interrupt
0 = Not Interrupting or Not steered to internal IRQ exception or masked by INTCTL2
1 = Interrupting and steered to internal IRQ exception and unmasked by INTCTL2
29:14 0
2
Reserved.
13 0
2
SRAM DMA Error
0 = Not Interrupting or Not steered to internal IRQ exception or masked by INTCTL2
1 = Interrupting and steered to internal IRQ exception and unmasked by INTCTL2
12 0
2
SRAM DMA Normal Interrupt
0 = Not Interrupting or Not steered to internal IRQ exception or masked by INTCTL2
1 = Interrupting and steered to internal IRQ exception and unmasked by INTCTL2
11:03 0
2
Reserved.
02 0
2
Reserved.
01 0
2
Reserved.
00 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 6, Register 2