External Spi Bios-Flash; Feature Connector - Avnet MSC C10-MB-EV User Manual

MSC C10-MB-EV
4.17

External SPI BIOS-Flash

There is a socket (SO8 220) on the motherboard, where an additional BIOS-Flash can be inserted.
The BIOS SPI flash can be selected with DIP switch S2802.
BIOS_DIS1 BIOS_DIS0
OFF OFF
OFF ON
ON OFF
ON ON

4.18 Feature Connector

Many COMExpress signals are not used on this carrier. These signals and some other
signals and power planes are available at the Feature connector.
Specification Feature connector:

References:

Connector:

Pin-out: Refer to Table 24

Location: Refer to Illustration 3 Miscellaneous Parts
Pin Signal
1 VCC5S (5V switched)
3 VCC5A (5V always on)
5 I2C_DAT
7 I2C_CLK
9 VCC3V3A (always on)
11 TPM_PP (TPM presence)
13 SLP_S5#
15 SLP_S3#
17 SLP_S4#
19 PS_ON#
21 GND
23 SUS_STAT#
25 GND
27 WDT (Watch dog trigger)
29 GND
31 BATLOW#
33 GND
35 LID#
37 GND
39 PWRBTN#
BIPOS Entry (SPI_CS#)
On module SPI (default)
Carrier FWH (not supported)
Carrier SPI
On module SPI, carrier SPI contains management data
Table 23 Jumper BIOS selection
X1401
40 pin IDC-M
Table 24 Pin-out Feature connector
42 / 48
Pin Signal
2 VCC3V3S (3,3V switched)
4 SATA_LED#
6 SMB_CLK
8 SMB_DAT
10 LPC_SERIRQ
12 VCC5S (5V switched)
14 BEEPER
16 SER0_TXD
18 SER0_RXD
20 SMB_ALERT#
22 CAN0_SER1_TXD
24 THRM#
26 CAN0_SER1_RXD
28 SLEEP#
30 GND
32 PCIE_WAKE#
34 GND
36 RESET#
38 GND
40 PWR_OK
User Manual
(incl. 330R serial)