XMC-6280
USER’S MANUAL
Acromag, Inc. Tel: 248-295-0310
- 15 - http://www.acromag.com
- 15 -
www.acromag.com
Serial EEPROM
Serial Flash
Temperature Sensor
There is a 256Kb Atmel SPI Serial EEPROM which contains all the hardware
configuration including things like pll multipliers and PCIe information. It
also contains information on how to configure the firmware for the T4 ASIC
including things like how to set up the DDR3 and the number of ports
available on the card.
This Serial EEPROM is not intended to be reprogrammed by the customer,
and doing so could cause a device failure.
The 32 Mb serial flash contains all the ASIC
’
s internal microprocessor
firmware code. Once the ASIC and microprocessor boots itself, the EEPROM
is read first to get configuration information. Then the ASIC copies the
firmware from the flash to DDR3 memory and runs everything from there.
This Serial EEPROM is not intended to be reprogrammed by the customer,
and doing so could cause a failure in the device. The driver will auto-load the
firmware if an update is required. The kernel must be configured to enable
userspace firmware loading support:
Device Drivers
Generic Driver Options
Userspace firmware loading
support
A Texas Instruments TMP421 temperature sensor is connected to the
thermal pins of the Terminator 4 ASIC to monitor the junction temperature
of the ASIC and also the local temperature of the temperature senor. The
ASIC has been designed to shut down at junction temperatures above 115
degrees Celsius. This is in an attempt to save the chip from being damaged
and is not a guarantee that it will not be damaged.
