Sun Microsystems CP3260 manual 9 I/O Subsystem Resets, Fruid PROMs

The H8 temperature alarm equivalents are:

Minor Alarm = Upper Non Critical (UNC)

Major Alarm = Upper Critical (UC)

Critical Alarm = Upper Non Recoverable (UNR)

Emergency H8 Shutdown (EMR) = UNR

Caution – These voltage and temperature thresholds should not be changed under normal operating conditions.

5.2.8.8FRUID PROMs

There are two FRUID PROMs on the Sun Netra CP3260 and both are 64-Kbyte SEEPROMs. One contains Sun FRU information and the other contains IPMI FRU information. Each device stores static information, such as the part number and manufacturing date, and dynamic data that can be updated by the host system, such as operational statistics and failure information.

5.2.9I/O Subsystem Resets

The UltraSPARC T2 provides a PCI Express reset out on the PEX_RESET_L pin. This pin connects to the FPGA and in turn, this is used by the FPGA to reset the I/O subsystem which includes the PLC PCI Express switch.

The PCIe switch in turn provides an inband reset (output pin) which, via the FPGA, resets the:

■Dual GbE for the Base

■Dual GbE for RTM

■GbE for management ports

■RTM PCIe reset

■Reset to PCI-E-to-PCI bridge

In addition to the processor resetting the I/O subsystem, each I/O component has reset software write-able by the PPC to reset individual components.

The Ethernet switch is reset-able via software by the PPC. This allows the Ethernet path between the PPC and the Base to remain active in the event the processor is being reset.

Chapter 5 Hardware Functional Descriptions 5-17