Alcatel 1850 TSS-320 Technical Handbook page 40

3.1.5.2 SPI Bus
By means of SPI (Serial Peripheral and Inventory) bus and GOBLIN_4G housed on Port card, the Second
Level Controller is able to perform the following tasks:
• gathering of Port card power supply failure alarms
• gathering of Optical LOS alarm
• detection of XFP optical module presence
• control of SERDES testing loopbacks (Line and Equipment Loop-backs)
• centering of SERDES elastic store (to carry out during board activation and after every loop-
back activation/deactivation)
• access to/from onboard EEPROM for Remote Inventory data via local SPI Bus
• access to/from a dedicated A/D converter to collect electric data (voltage levels, current values)
• moreover, via KYRA Cpld, it is possible to:
– o control card status LED
– gain access (via SPI-I2C bridge integrated within KYRA) of XFP Remote Inventory data
(serial ID, digital diagnostics)
– monitor FERMAT junction temperature and card temperature values
3.1.5.3 HW_CFG Bus
By means of the Hardware Configuration Bus the Second Level Controller is able to access to the
HW_CFG bridge function implemented inside the GOBLIN_4G device.
This function is able to grant both the access in read and write modality to the Flash Memory and also
the transfer of the downloaded Configuration Data from Flash memory to FERMAT via the FPGA's parallel
configuration interface.
Furthermore HW_CFG allows the remote control of this download procedure.
Alcatel 1850 TSS-320 Rel.1.1
38/84 8DG 07734 CAAA Edition 01
Technical Handbook SDH
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