User manual

Adapter Card InterfacesRev 1.7
Mellanox Technologies
18
2.4.3 EEPROM
Each board incorporates an EEPROM that is accessible through the I
2
C-compatible interface. The
EEPROM capacity is 4Kb. The EEPROM is used for storing the Vital Product Data (VPD).
The PCI VPD (Vital Product Data) layout for each of the adapter cards complies with the format
defined in the PCI 3.0 Specification, Appendix I.
Table 6 - MCX31[34]-BCBT VPD Layout
Offset
(Decimal)
Item Value Format Description
0 Large Resource Type ID
String Tag (0x02)
0x82
1 Length [7:0] LSB 0x18
2 Length [15:8] MSB 0x0
3 Data CX314A - Con-
nectX-3 QSFP
STR
27 Large Resource Type VPD-R
Tag (0x10)
0x90
28 Length [7:0] LSB 0x4F
29 Length [15:8] MSB 0x00
30 VPD Keyword PN STR Add in Card Part Number
32 Length 0x15
33 Part Number PN %STR_SPC
54 VPD Keyword EC STR Engineering Change Level of
the card (rev)
56 Length 0x2
57 Revision RV %STR PCB revision
59 VPD Keyword SN STR Serial Number
61 Length 0x18
62 SerialNumber SN %STR_SPC “00..00XXXX..XX”
86 VPD Keyword V0 STR Misc Information
88 Length 0x10
89 Data PCIe Gen3 x8 STR_SPC
105 VPD Keyword RV STR
107 Length 0x1
108 Data 0,107 %CS0
109 Large Resource Type VPD-W
Tag (0x11)
0x91
110 Length [7:0] LSB 0x8F
111 Length [15:8] MSB 0xF
112 VPD Keyword V1 STR EFI Driver version
114 Length 0x6
115 Data N/A STR_SPC
121 VPD Keyword YA STR Asset Tag
123 Length 0x18
124 Data N/A STR_SPC “N/A”