82NM10 Datasheet, PDF (488/671 Pages) Intel Corporation – Intel® NM10 Family Express Chipset

SATA Controller Registers (D31:F2)
15.1.32 MSIMD—Message Signaled Interrupt Message Data
(SATA–D31:F2)
Address Offset: 88h-89h
Default Value: 0000h
Attribute:
Size:
R/W
16 bits
Bits
Description
15:0
Data (DATA)— R/W: This 16-bit field is programmed by system software if MSI is
enabled. Its content is driven onto the lower word of the data bus of the MSI memory
write transaction. Note that when the MME field is set to ‘001’ or ‘010’, bit [0] and bits
[1:0] respectively of the MSI memory write transaction will be driven based on the
source of the interrupt rather than from MD[1:0]. See the description of the MME field.
15.1.33 MAP—Address Map Register (SATA–D31:F2)
Address Offset: 90h
Default Value: 00h
Attribute:
Size:
R/W
8 bits
Bits
Description
7:6 SATA Mode Select (SMS) — R/W: Software programs these bits to control the mode
in which the SATA HBA should operate:
00b = IDE mode
01b = AHCI mode
10b = Reserved
11b = Reserved
NOTES:
1.
The SATA Function Device ID will change based on the value of this register.
2.
When combined mode is used (MV Not equal to ‘0’), only IDE mode is allowed.
IDE mode can be selected when AHCI are enabled
3.
AHCI mode may only be selected when MV = 0
4.
Programming these bits with values that are invalid (e.g, selecting RAID when
in combined mode) will result in indeterministic behavior by the hardware.
5:2 Reserved.
1:0 _{Map Value (MV): The value in the bits below indicate the address range the SATA}
ports. BIOS must programs it to value 00, in order to set the Port 0 as primary and Port
1 as secondary.
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