Acrosser ACM-B6360 - Manual (Page 17)

2.4. Specifying the boot BIOS (CN_HDR1 setting)
he COM Express module/Type6 typically supports the BIOS disable signal
(BIOS_DIS1# and BIOS_DIS0#) and SPI_CS# signal. The BIOS disable signals are
set on the carrier board.
The combination of these signals is used to define booting from module SPI or carrier
board SPI/FWH. Below table shows the signals and jumper settings on the CN_HDR1
headers.
COM Express Connector Type6
BIOS_DISABLE1#
(CN2_B88)
BIOS_DISABLE0#
(CN2_A34)
CN_HDR1
(Pin1,3,5)
CN_HDR1
(Pin2,4,6)
PCH CS# destination
BIOS
Descriptor
1
(Default)
1
(Default)
1-3
(Default)
2-4
(Default)
Module SPI @ CS0#
Carry SPI @ CS1#
@ Module
SPI
1
(Default)
1
(Default)
3-5 4-6
Module SPI @ CS1#
Carry SPI @ CS0#
@ Carry SPI
0 0 Open Carry FWH Carry FWH
17