Advantech MIC-3397, User Manual

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MIC-3397 User Manual 60
C.1 Features

Power Sequence
 Hot-Swap: Hot insertion and removal control
 LPC Bus: Provide LPC Bus access
 Watchdog
 2x SPI Cross-Switch: Dedicated SPI cross-switch for BIOS
 Debug Message: Boot time POST message
C.2 FPGA I/O Registers
The Advantech MIC-3397 FPGA communicates with main I/O spaces. The LPC unit
is used to interconnect the Intel LPC signals. The Debug Port Unit is used to decode
POST codes. The Watchdog is used to detect BIOS ready signal or recover BIOS
code from redundant BIOS flash. The Hot-Swap Out-Of-Service LED Control Unit is
used to control the blue LED during Hot-Insert and Hot-Remove. The other signals in
the Miscellaneous Unit are for interfacing with corresponding I/O interface signals.
LPC Address I/O Type Description
0x80h W Port 80 Display
0x440h R FPGA minor revision ID
0x441h R Watch Dog Timer Display
0x442h R BIOS Switch display
0x443h/0x 444h RW Watchdog Register
0x445h R FPGA major revision
0x447h R Geography Address (GA)