2-5
LOCAL X2APIC ARCHITECTURE
0120H 012H ISR bits 64:95 Read Only.
0130H 013H ISR bits 96:127 Read Only.
0140H 014H ISR bits 128:159 Read Only.
0150H 015H ISR bits 160:191 Read Only.
0160H 016H ISR bits 192:223 Read Only.
0170H 017H ISR bits 224:255 Read Only.
0180H 018H Trigger Mode Register
(TMR); bits 0:31
Read Only.
0190H 019H TMR bits 32:63 Read Only.
01A0H 01AH TMR bits 64:95 Read Only.
01B0H 01BH TMR bits 96:127 Read Only.
01C0H 01CH TMR bits 128:159 Read Only.
01D0H 01DH TMR bits 160:191 Read Only.
01E0H 01EH TMR bits 192:223 Read Only.
01F0H 01FH TMR bits 224:255 Read Only.
0200H 020H Interrupt Request
Register (IRR); bits 0:31
Read Only.
0210H 021H IRR bits32:63 Read Only.
0220H 022H IRR bits 64:95 Read Only.
0230H 023H IRR bits 96:127 Read Only.
0240H 024H IRR bits 128:159 Read Only.
0250H 025H IRR bits 160:191 Read Only.
0260H 026H IRR bits 192:223 Read Only.
0270H 027H IRR bits 224:255 Read Only.
0280H 028H Error Status Register Read/Write. GP fault on non-zero
writes
0290H-
02E0H
029H-02EH Reserved
02F0H 02FH Reserved
0300H-
0310H
2
030H
3
Interrupt Command
Register (ICR); bits 0-63
Read/Write.
Table 2-2. Local APIC Register Address Map Supported by x2APIC (Contd.)
MMIO Offset
(xAPIC mode)
MSR Offset
(x2APIC
mode) Register Name
R/W
Semantics Comments
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