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Express-HLE
4.6.2
SW1: PCI Express Configuration Switch
Switch SW1 allows you to configure the PCI Express x16 lanes from the CPU as 1 PCIe x16, 2 PCIe x8, or 1 PCIe x8 + 2 PCIe x4.
Mode
Pin 1
Pin 2
1x PCIe x16 (default)
Off
Off
2x PCIe x8
On
Off
1x PCIe x8 + 2x PCIe x4
On
On
Reserved Off
On
4.6.3
SW4: LVDS Panel Configuration Switch
Switch SW4 allows you to set the LVDS panel mode to 18-bit or 24-bit.
Mode
Pin 2
18 bit LVDS panel mode (default)
Off
24 bit LVDS panel mode
On
4.6.4
SW3: BIOS Select and Mode Configuration Switch
Module has two BIOS chips and BIOS operation can be configured to "PICMG" and "Failsafe" modes using SW3, Pin 2.
Setting the module to PICMG mode will configure the BIOS chips on the module as SPI0 and SPI1. In PICMG mode, a BIOS chip CANNOT
be placed in SPI0 on the carrier.
In dual-BIOS Failsafe mode, both BIOS chips on the module are configured as SPI1. Only one of the two is connected to the SPI bus at any
given time. In case of BIOS failure of the primary SPI1 BIOS, the system will reboot and switch to the secondary SPI1 BIOS on the module.
In Failsafe mode, it is allowed to also have an SPI0 BIOS on the carrier.
In both modes, strapping can select whether to boot from SPI0 or SPI1 (SW3 Pin 1).
Mode
Pin 1
Pin 2
Boot from SPI0 (Default)
On
—
Boot from SPI1
Off
—
Set BIOS to PICMG mode
—
On
Set BIOS to Failsafe BIOS mode (Default)
—
Off
Содержание COM Express Express-HLE
Страница 1: ...Express HLE User s Manual Manual Revision 1 01 Revision Date October 22 2014 Part Number 50 1J050 1010...
Страница 11: ...Express HLE Page 11 2 16 Mechanical Drawing...
Страница 21: ...Express HLE Page 21 3 3 10 USB Root Segmentation...
Страница 37: ...Express HLE Page 37 4 6 Express HLE Switch Settings 4 6 1 Switch Locations SW4 SW1 SW3...