876784 Intel, 876784 Datasheet - Page 527

• Manufacturer Part Number: 876784
• Manufacturer: Intel

Specifications of 876784

• Lead Free Status / RoHS Status: Compliant

SATA Controller Registers (D31:F2) (Desktop and Mobile Only)
12.3.1.3
Intel
®
ICH7 Family Datasheet
IS—Interrupt Status Register (D31:F2)
Address Offset: ABAR + 08h
Default Value:
This register indicates which of the ports within the controller have an interrupt pending
and require service.
ICH7R and
ICH7DH
ICH7DH
(Mobile
(Mobile
(ICH7R
(Intel
Only)
Only)
Only)
Only)
31:4
and
Bit
3
3
2
1
1
0
®
Reserved. Returns 0.
Reserved. Returns 0.
Interrupt Pending Status Port[3] (IPS[3]) — R/WC.
0 = No interrupt pending.
1 = Port 3 has an interrupt pending. Software can use this information to determine
Interrupt Pending Status Port[2] (IPS[2]) — R/WC
0 = No interrupt pending.
1 = Port 2 has an interrupt pending. Software can use this information to determine
Reserved. Returns 0.
Interrupt Pending Status Port[1] (IPS[1]) — R/WC.
0 = No interrupt pending.
1 = Port 1has an interrupt pending. Software can use this information to determine
Interrupt Pending Status Port[0] (IPS[0]) — R/WC.
0 = No interrupt pending.
1 = Port 0 has an interrupt pending. Software can use this information to determine
which ports require service after an interrupt.
which ports require service after an interrupt.
which ports require service after an interrupt.
which ports require service after an interrupt.
00000000h
–
0Bh
Description
Attribute:
Size:
R/WC, RO
32 bits
527