SB4002A_Data Sheet_EN

SB4002A
56
If you want to use the VPD Capability only, store 48h and 00h in 34h and 49h, respectively, of
the PCI Configuration Space.
If you want to use the CompactPCI Hot Swap Capability only, store 50h in 34h of the PCI
Configuration Space.
If 00h is stored in 34h of the PCI Configuration Space, the three Capabilities are disabled.
Serial ROM Address(29h) : NEXT PTR0
Serial ROM Address(29h) represents the Next Item Pointer of PCI Power Management Interface
Capability List.
This is used to use the VPD Capability or the CompactPCI Hot Swap Capability other than the
PCI Power Management Interface Capability.
If 48h is stored, the VPD Capability is enabled, and if 50h is stored, the CompactPCI Hot Swap
Capability is enabled.
If 00h is stored, no more Capability is enabled.
Serial ROM Address(2Ah) : PMC Data Scale
Serial ROM Address(2Ah) is used to specify the Data Scale value(PMCSR[14:13]) of PMCSR
which is located in PCI Configuration Space 44h.
The bit designates the scale of data to be read through the Data Register of the PCI Power
Management Interface Capability. 00h indicates the unknown scale, and 20h, 40h and 60h
indicate the data scale of x0.1, x0.01 and x0.001, respectively. (See 2.3 PCI Power Management
Interface for further details.)
00h, 20h, 40h and 60h must be used to designate 00h, 01h, 02h and 03h, respectively.
Serial ROM Address(2Bh) : PMC Data 0
Serial ROM Address(2Bh) is used to specify the reading value from Data Register in case Data
Select bits(PMCSR[12:9]) of PMCSR equal to 0h. In other words, it indicates the D0 State Power
Consumed.
The data register is located in 47h of the PCI Configuration Space. (See 2.3 PCI Power
Management Interface for further details.)
Serial ROM Address(2Ch) : PMC Data 3
Serial ROM Address(2Ch) is used to specify the reading value from Data Register in case Data
Select bits(PMCSE[12:9]) of PMCSR equal to 3h. In other words, it indicates the D3 State Power
Consumed.