EP80579 Datasheet, PDF (219/1916 Pages) Intel Corporation – Intel® EP80579 Integrated Processor Product Line

Intel^® EP80579 Integrated Processor
7.3.15
8259 Interrupt Controller (PIC)
The 8259 Interrupt Controller includes the registers listed in Table 7-36. These
registers materialize at fixed locations in I/O space. See Chapter 30.0, “Interrupts” for
detailed discussion of these registers.
Table 7-36. Summary of 8259 Interrupt Controller (PIC) Registers Mapped in I/O Space
Offset Start Offset End
Register ID - Description
Default
Value
020h, 0A0h
021h, 0A1h
21h
A1h
21h, 0A1h
021h, 0A1h
020h, 0A0h
020h, 0A0h
4D0h
4D1h
020h, 0A0h
021h, 0A1h
21h
A1h
21h, 0A1h
021h, 0A1h
020h, 0A0h
020h, 0A0h
4D0h
4D1h
“ICW1[0-1] - Initialization Command Word 1 Register” on page 1119
0001X0XXb
“ICW2[0-1] - Initialization Command Word 2 Register” on page 1120
XXh
“MICW3 - Master Initialization Command Word 3 Register” on page 1121
04h
“SICW3 - Slave Initialization Command Word 3 Register” on page 1121
00h
“ICW4[0-1] - Initialization Command Word 4 Register” on page 1122
01h
“OCW1[0-1]- Operational Control Word 1 (Interrupt Mask) Register” on page 1122 00h
“OCW2[0-1] - Operational Control Word 2 Register” on page 1123
001XXXXXb
“OCW3[0-1] - Operational Control Word 3 Register” on page 1124
001XX10b
“ELCR1 - Master Edge/Level Control Register” on page 1125
00h
“ELCR2 - Slave Edge/Level Control Register” on page 1126
00
7.3.16
APM Power Management
The APM power management includes the registers listed in Table 7-37. These registers
materialize at fixed locations in I/O space. See Chapter 27.0, “Power Management” for
detailed discussion of these registers.
Table 7-37. Summary of APM Registers Mapped in I/O Space
Offset Start Offset End
Register ID - Description
Default
Value
B2h
B2h
“Offset B2h: APM_CNT - Advanced Power Management Control Port Register” on
page 1054
00h
B3h
B3h
“Offset B3h: APM_STS - Advanced Power Management Status Port Register” on
page 1054
00h
August 2009
Order Number: 320066-003US
Intel^® EP80579 Integrated Processor Product Line Datasheet
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