876784 Intel, 876784 Datasheet - Page 539

• Manufacturer Part Number: 876784
• Manufacturer: Intel

Specifications of 876784

• Lead Free Status / RoHS Status: Compliant

SATA Controller Registers (D31:F2) (Desktop and Mobile Only)
12.3.2.10
Intel
®
ICH7 Family Datasheet
PxSSTS—Port [3:0] Serial ATA Status Register (D31:F2)
Address Offset: Port 0: ABAR + 128h
Default Value:
This is a 32-bit register that conveys the current state of the interface and host. The
ICH7 updates it continuously and asynchronously. When the ICH7 transmits a
COMRESET to the device, this register is updated to its reset values.
31:12
11:8
7:4
3:0
Bit
Reserved
Interface Power Management (IPM) — RO. Indicates the current interface state:
All other values reserved.
Current Interface Speed (SPD) — RO. Indicates the negotiated interface
communication speed.
All other values reserved.
Intel
(3.0 Gb/s).
ICH7 Mobile SKUs support Generation 1 communication rates (1.5 Gb/sec).
Device Detection (DET) — RO. Indicates the interface device detection and Phy
state:
All other values reserved.
Value
Value
Value
®
0h
1h
2h
6h
0h
1h
2h
0h
1h
3h
4h
ICH7 supports Generation 1 communication rates (1.5 Gb/sec) and Gen 2 rates
Port 1: ABAR + 1A8h (Desktop Only)
Port 2: ABAR + 228h
Port 3: ABAR + 2A8h (Desktop Only)
00000000h
Description
Device not present or communication not established
Interface in active state
Interface in PARTIAL power management state
Interface in SLUMBER power management state
Description
Device not present or communication not established
Generation 1 communication rate negotiated
Generation 2 communication rate negotiated
Description
No device detected and Phy communication not established
Device presence detected but Phy communication not established
Device presence detected and Phy communication established
Phy in offline mode as a result of the interface being disabled or
running in a BIST loopback mode
Description
Attribute:
Size:
RO
32 bits
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