Advantech MIC-5602, Руководство пользователя

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13 MIC-5602 User Manual
Chapter 2
B
oard Specification
2.2.12 Legacy USB Support
The legacy USB support enables USB devices such as keyboards, mice, and hubs to
be used even when the operating system's USB drivers are not yet available. The
legacy USB support allows the user to access the BIOS setup menu and install an
operating system that supports USB. The legacy USB support is set to "Enabled" by
default.
2.2.13 E-Keying
The purpose of E-Keying as mentioned in the PICMG AMC.0 R2.0 Specification is to
prevent board damage/mis-operation and to verify fabric compatibility. The FRU data
contains the board point-to-point connectivity record as described in Section 3.9.1.2
of the PICMG AMC.0 R2.0 Specification. If the carrier card does not support the
same fabric pin-out as the AMC Module, the E-Keying will disable the fabric interface.
If matched, the MMC will change the status of its pre-assigned GPO pins. And, when
the BIOS detect these pins' changed status, it will enable the corresponding fabric
interface.
Note! The legacy USB support is for keyboards, mice and hubs only. It does
not support other USB devices except bootable devices like CD-ROM
drives and floppy disk drives.
Table 2.5: E-Keying Match
Port GPO Pin Name
Action
GPO Status BIOS must
USB EKEY_EN_USB High -
PCIe Configuration
EKEY_EN_PCIE1 High Enable this port
EKEY_EN_PCIE2 High Enable this port
PCIe Clock EKEY_EN_PCIE_CLK High -
SATA 0 EKEY_EN_SATA0 High Enable this port
SATA 1 EKEY_EN_SATA1 High Enable this port
SerDes 1 EKEY_EN_GBE1 High Enable this port
SerDes 2 EKEY_EN_GBE2 High Enable this port
Table 2.6: E-Keying Mis-Match
Port GPO Pin Name
Action
GPO Status BIOS must
USB EKEY_EN_USB Low -
PCIe Configuration
EKEY_EN_PCIE1 Low Disable this port
EKEY_EN_PCIE2 Low Disable this port
PCIe Clock EKEY_EN_PCIE_CLK Low -
SATA 0 EKEY_EN_SATA0 Low Disable this port
SATA 1 EKEY_EN_SATA1 Low Disable this port
SerDes 1 EKEY_EN_GBE1 Low Disable this port
SerDes 2 EKEY_EN_GBE2 Low Disable this port