Intel 6 SERIES CHIPSET - DATASHEET 01-2011 - Page 623

Datasheet 623
SATA Controller Registers (D31:F5)
15.1.12 SCMD_BAR—Secondary Command Block Base Address
Register (SATA D31:F5)
Address Offset: 18h–1Bh Attribute: R/W, RO
Default Value: 00000001h Size: 32 bits
NOTE: This 8-byte I/O space is used in native mode for the Secondary Controller’s Command
Block.
15.1.13 SCNL_BAR—Secondary Control Block Base Address
Register (SATA D31:F5)
Address Offset: 1Ch–1Fh Attribute: R/W, RO
Default Value: 00000001h Size: 32 bits
NOTE: This 4-byte I/O space is used in native mode for the Secondary Controller’s Command
Block.
Bit Description
31:16 Reserved
15:3
Base Address — R/W. This field provides the base address of the I/O space (8
consecutive I/O locations).
2:1 Reserved
0
Resource Type Indicator (RTE) — RO. Hardwired to 1 to indicate a request for I/O
space.
Bit Description
31:16 Reserved
15:2
Base Address — R/W. This field provides the base address of the I/O space (4
consecutive I/O locations).
1 Reserved
0
Resource Type Indicator (RTE) — RO. Hardwired to 1 to indicate a request for I/O
space.