15 spi interface, Table 4-8, Spi multiplex direction status – Artesyn COMX-CORE Series Installation and Use (August 2014) User Manual
Page 76: Figure 4-11, Spi interface diagram, Functional description
Functional Description
COMX-CORE Series Installation and Use (6806800K11F)
76
4.15 SPI Interface
COMX-CORE Series uses SPI flash as a boot device. On COM Express Type 6, the SPI bus routes
to the COM Express connector. There is also a SPI BIOS on the carrier board, so the
BIOS_DISABLE# signal from the carrier board is used. If you want to use the FWH on the carrier
board, you must have a jumper on the carrier board switched to the BIOS source through the
carrier board.
Table 4-8 SPI Multiplex Direction Status
BIOS_DISABLE0/1_N
Boot from Module
Boot from Carrier Board
1
OK
---
0
---
OK
Figure 4-11 SPI Interface Diagram
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