KTQM67 Users Guide
KTD-N0819-E Page 58
Warning
: If the jumper (J4) is mounted and you make BIOS Upgrade etc. then the BIOS
Recovery SPI Flash will be Upgraded and not the BIOS Default SPI Flash.
This means that in case something goes wrong (power interruption or incorrect BIOS package
used etc.) when Upgrading BIOS, then the BIOS Recovery SPI Flash might get corrupted.
6.14
SPI Recover Jumper (J4)
The SPI Recover Jumper is used to select BIOS Recovery SPI Flash instead of the BIOS Default SPI
Flash.
Normally Jumper is not installed and board boots on the BIOS Default SPI Flash.
Only in case the Default BIOS gets corrupted (board do not boot), then turn off power, install Jumper
(J4) and try rebooting.
After rebooting, remove the Jumper before Default BIOS is recovered by reloading BIOS (for instance
by using latest BIOS upgrade package from web product page).
Verify that Default BIOS has been recovered by making a successful reboot.
6.15
SPI Connector (SPI) (J5)
The SPI Connector is normally not used. If however a SPI BIOS is connected via the SPI Connector
then the board will try to boot on it.
Note Pull U/D Ioh/Iol Type Signal
PIN
Signal
Type Ioh/Iol Pull U/D Note
-
CLK
1
2
SB3V3
PWR
-
-
-
I
CS0#
3
4
ADDIN
IO
/10K
10K/
-
NC
5
6
NC
-
-
-
10K/
IO
MOSI
7
8
ISOLATE#
IO
100K
-
IO
MISO
9 10
GND
PWR
-
-
Signal
Description
CLK
Serial Clock
SB3V3
3.3V Standby Voltage power line. Normally output power, but when Motherboard is
turned off then the on-board SPI Flash can be 3.3V power sourced via this pin.
CS0#
CS0# Chip Select 0, active low.
ADDIN
ADDIN input signal must be NC.
MOSI
Master Output, Slave Input
ISOLATE#
The ISOLATE# input, active low, is normally NC, but must be connected to GND when
loading SPI flash. Power Supply to the Motherboard must be turned off when loading
SPI flash. The pull up resistor is connected via diode to 5VSB.
MISO
Master Input, Slave Output
Internal Connectors
!
