Advantech SOM-7533 User Manual page 18

1.3.8.8 Watchdog Timer
There is support for multi-level watchdog time-out output. 1-65535 levels, from 100
ms to 109.22 minute intervals.
1.3.8.9 Serial Ports
2 x 2-wire serial ports (Tx/Rx) support 16550 UART compliance:
Programmable FIFO or character mode

16-byte FIFO buffer on the transmitter and receiver in FIFO mode

Programmable serial-interface characteristics: 5-, 6-, 7-, or 8-bit character

Even, odd, or no parity bit selectable

1, 1.5, or 2 stop bits selectable

Baud rate up to 115.2K

1.3.8.10 TPM
Supports optional TPM 2.0 module.
1.3.8.11 Smart Fan
Supports 1 Fan PWM control signal and 1 tachometer input for fan speed detection.
There is support for 1 on the carrier board following PICMG COM Express R3.1
specifications.
1.3.8.12 BIOS
The BIOS chip is on the module by default. Users can place the BIOS chip on the
carrier board with appropriate design and jumper settings in BIOS_DIS#[1:0].
Table 1.8: BIOS
BIOS_DIS#0
Open
Open
GND
Note: If system COMS is cleared, Advantech strongly suggests going to the
BIOS setup menu and loading default settings on the first bootup.
SOM-7533 User Manual
BIOS_DIS#1 Bootup Destination/Function
Open Boot from Module SPI BIOS
GND SPI_CS0# to Carrier Board, SPI_CS1# to Module
GND SPI_CS0# to Module, SPI_CS1# to Carrier Board
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