KIC551
K I C 5 5 1 U s e r M a n u a l
56
© 2 0 2 1 F a s t w e l V e r . 0 0 3
Table 4.2
– Compliance of bit sequences of the register with the address 01 “EEPROM Control” with
the selected EEPROM microchip
The pack of configuration parameters contains information for configuring the peripheral devices
located inside the KIC551/KIC551RC module and also defines the system configuration.
Therefore, the pack of configuration parameters includes:
1. Program Configuration Unit (PCU) of the PCI Express switch;
2. PCU of the 1 Gbit Ethernet switch;
3. PCU of the 10 Gbit Ethernet controller;
4. PCU of the FPGA, main;
5. PCU of the FPGA, reserved;
6. PCU, system.
Each of the listed PCUs, is in operating condition and stored in the corresponding EEPROM chip,
from where it is loaded when the KIC551 / KIC551RC module is powered on.
If PCU needs to be changed, the updated PCU is placed into the NAND drive of the
KIC551/KIC551RC module using the Gigabit Ethernet interface via FTP, and then via Telnet
connection by a command (see Annex B - List of Telnet interface commands) it is copied to the
corresponding EEPROM chip.
The NAND drive can have several PCU copies, implementing any given configuration of this
peripheral device or system. A PCU copy can either be selected by a command via Gigabit
Ethernet interface or autonomously by an algorithm, loaded in the working software of the
microcontroller. This will enable to flexibly reconfigure the system for solving a broad range of
tasks, as well as improve the system fault tolerance at the level of packs or group of packs.
4.2.2 Loading PCU of the PCI Express switch
The PCU of the PCI Express switch is designed for configuration of the internal function registers
of the PEX8764 VLSI, including BAR, Link Control, Power Management, etc. the more detailed
information can be found in the documentation for the relevant VLSI (PEX_8764-
AA_AB_Data_Book_v1.0_05Jun13.pdf [1], see the Annex G).
The AT25256B chip is sued as the configuration EEPROM VLSI PEX8764.
The PCU itself can be synthesized for configuring the PEX8764 VLSI using the PLX Device Editor
software, provided by the manufacturer of the specified VLSI - Awago Technologies (formerly PLX
Technology). The latest version can be downloaded from the website:
EEPROM chip
Bit 3
Bit 2
Bit 1
Bit 0
Value
Not selected (by default)
0
0
0
0
0
EEPROM of the PCI Express AT25256B switch
0
0
0
1
1
EEPROM of the Gigabit Ethernet AT93C66B switch
0
0
1
0
2
EEPROM of the 10G Ethernet AT25256B controller
0
0
1
1
3
EEPROM of AT25256B system configuration
0
1
0
0
4
Main configuration EEPROM FPGA AT45DB321D
0
1
0
1
5
Reserved configuration EEPROM FPGA AT45DB321D
0
1
1
0
6
