Datasheet

ACPI Devices
Intel
®
Atom™ Processor E6xx Series Datasheet
225
11.4.2.3 Offset 10-11h – 3E-3Fh: RTE[0-23] – Redirection Table Entry
Offset: vector 0: 10h-11h, vector 1: 12h-13h, vector 23: 3Eh-3Fh; vector N: (10h+
(Nx2 in Hex)) - (11h + (Nx2 in Hex)).
14 :08 0 RO RSVD Reserved
07 :00 20h RO VS Version: Identifies the implementation version as IOxAPIC.
Table 328. 01h: VS – Version Register (Sheet 2 of 2)
Size: 32 bit Default: Power Well: Core
Access
PCI Configuration B:D:F
Offset Start:
Offset End:
01h
01h
Bit Range Default Access Acronym Description
Table 329. 10-11h – 3E-3Fh: RTE[0-23] – Redirection Table Entry
Size: 64 bit Default: Power Well: Core
Access
PCI Configuration B:D:F
Offset Start:
Offset End:
10h
11h
Bit Range Default Access Acronym Description
63 :56 X RW DID Destination ID: Destination ID of the local APIC.
55 :48 X RW EDID Extended Destination ID: Extended destination ID of the local APIC.
47 :17 0 RO RSVD Reserved
16 1 RW MSK
Mask: When set, interrupts are not delivered nor held pending. When
cleared, and edge or level on this interrupt results in the delivery of the
interrupt.
15 X RW TM
Trigger Mode: When cleared, the interrupt is edge sensitive. When set,
the interrupt is level sensitive.
14 X RW RIRR
Remote IRR: This is used for level triggered interrupts its meaning is
undefined for edge triggered interrupts. This bit is set when IOxAPIC
sends the level interrupt message to the CPU. This bit is cleared when an
EOI message is received that matches the VCT field. This bit is never set
for SMI, NMI, INIT, or ExtINT delivery modes.
13 X RW POL
Polarity: This specifies the polarity of each interrupt input. When
cleared, the signal is active high. When set, the signal is active low.
12 X RO DS
Delivery Status: This field contains the current status of the delivery of
this interrupt. When set, an interrupt is pending and not yet delivered.
When cleared, there is no activity for this entry
11 X RW DSM
Destination Mode: This field is used by the local APIC to determine
whether it is the destination of the message.
10 :08 X RW DLM
Delivery Mode: This field specifies how the APICs listed in the
destination field should act upon reception of this signal. Certain Delivery
Modes will only operate as intended when used in conjunction with a
specific trigger mode. These encodings are:
000 Fixed
001 Lowest Priority
010 SMI – Not supported.
011 Reserved
100 NMI – Not supported.
101 INIT – Not supported.
110 Reserved
111 ExtINT
07 :00 X RW VCT
Vector: This field contains the interrupt vector for this interrupt. Values
range between 10h and FEh.