Specifications

Intel
®
64 and IA-32 Architectures Software Developer’s Manual Documentation Changes 241
Documentation Changes
...
FEE0 01F0H Trigger Mode Register (TMR); bits 255:224 Read Only.
FEE0 0200H Interrupt Request Register (IRR); bits 31:0 Read Only.
FEE0 0210H Interrupt Request Register (IRR); bits 63:32 Read Only.
FEE0 0220H Interrupt Request Register (IRR); bits 95:64 Read Only.
FEE0 0230H Interrupt Request Register (IRR); bits 127:96 Read Only.
FEE0 0240H Interrupt Request Register (IRR); bits 159:128 Read Only.
FEE0 0250H Interrupt Request Register (IRR); bits 191:160 Read Only.
FEE0 0260H Interrupt Request Register (IRR); bits 223:192 Read Only.
FEE0 0270H Interrupt Request Register (IRR); bits 255:224 Read Only.
FEE0 0280H Error Status Register Read Only.
FEE0 0290H through
FEE0 02E0H
Reserved
FEE0 02F0H LVT CMCI Registers Read/Write.
FEE0 0300H Interrupt Command Register (ICR); bits 0-31 Read/Write.
FEE0 0310H Interrupt Command Register (ICR); bits 32-63 Read/Write.
FEE0 0320H LVT Timer Register Read/Write.
FEE0 0330H LVT Thermal Sensor Register
2
Read/Write.
FEE0 0340H LVT Performance Monitoring Counters
Register
3
Read/Write.
FEE0 0350H LVT LINT0 Register Read/Write.
FEE0 0360H LVT LINT1 Register Read/Write.
FEE0 0370H LVT Error Register Read/Write.
FEE0 0380H Initial Count Register (for Timer) Read/Write.
FEE0 0390H Current Count Register (for Timer) Read Only.
FEE0 03A0H through
FEE0 03D0H
Reserved
FEE0 03E0H Divide Configuration Register (for Timer) Read/Write.
FEE0 03F0H Reserved
NOTES:
1. Not supported in the Pentium 4 and Intel Xeon processors. The Illegal Register Access bit (7) of
the ESR will not be set when writing to these registers.
2. Introduced in the Pentium 4 and Intel Xeon processors. This APIC register and its associated
function are implementation dependent and may not be present in future IA-32 or Intel 64 pro-
cessors.
3. Introduced in the Pentium Pro processor. This APIC register and its associated function are
implementation dependent and may not be present in future IA-32 or Intel 64 processors.
Table 10-1 Local APIC Register Address Map (Continued)
Address Register Name Software
Read/Write