NH82801GBM SL8YB Intel Corporation, NH82801GBM SL8YB Datasheet - Page 510

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NH82801GBM SL8YB

Manufacturer Part Number
NH82801GBM SL8YB
Description
Manufacturer
Intel Corporation
Datasheet

Specifications of NH82801GBM SL8YB

Case
BGA
Date_code
07+
12.1.34
PCS—Port Control and Status Register (SATA–D31:F2)
Address Offset: 92h
Default Value:
0000h
This register is only used in systems that do not support AHCI. In AHCI enabled
systems, bits[3:0] must always be set (ICH7R only) / bits[2,0] must always be set
(Mobile only), and the status of the port is controlled through AHCI memory space.
Bits
15:8
Reserved.
Port 3 Present (P3P) — RO. The status of this bit may change at any time. This bit
is cleared when the port is disabled via P3E. This bit is not cleared upon surprise
7
removal of a device.
(Desktop
Only)
0 = No device detected.
1 = The presence of a device on Port 3 has been detected.
7 (Mobile
Reserved
Only)
Port 2 Present (P2P) — RO. The status of this bit may change at any time. This bit
is cleared when the port is disabled via P2E. This bit is not cleared upon surprise
removal of a device.
6
0 = No device detected.
1 = The presence of a device on Port 2 has been detected.
Port 1 Present (P1P) — RO. The status of this bit may change at any time. This bit
is cleared when the port is disabled via P1E. This bit is not cleared upon surprise
5
removal of a device.
(Desktop
Only)
0 = No device detected.
1 = The presence of a device on Port 1 has been detected.
5 (Mobile
Reserved
Only)
Port 0 Present (P0P) — RO. The status of this bit may change at any time. This bit
is cleared when the port is disabled via P0E. This bit is not cleared upon surprise
removal of a device.
4
0 = No device detected.
1 = The presence of a device on Port 0 has been detected.
Port 3 Enabled (P3E) — R/W.
3
0 = Disabled. The port is in the ‘off’ state and cannot detect any devices.
(Desktop
1 = Enabled. The port can transition between the on, partial, and slumber states and
Only)
can detect devices.
NOTE: This bit takes precedence over P3CMD.SUD (offset ABAR+298h:bit 1)
3 (Mobile
Reserved
Only)
Port 2 Enabled (P2E) — R/W.
0 = Disabled. The port is in the ‘off’ state and cannot detect any devices.
2
1 = Enabled. The port can transition between the on, partial, and slumber states and
can detect devices.
NOTE: This bit takes precedence over P2CMD.SUD (offset ABAR+218h:bit 1)
Port 1 Enabled (P1E) — R/W.
1
0 = Disabled. The port is in the ‘off’ state and cannot detect any devices.
(Desktop
1 = Enabled. The port can transition between the on, partial, and slumber states and
Only)
can detect devices.
NOTE: This bit takes precedence over P1CMD.SUD (offset ABAR+198h:bit 1)
1 (Mobile
Reserved
Only)
510
SATA Controller Registers (D31:F2) (Desktop and Mobile Only)
93h
Attribute:
Size:
Description
R/W, R/WC, RO
16 bits
®
Intel
ICH7 Family Datasheet

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