Sun Microsystems 60 service manual Motherboard, Standard System Facilities

C.2.3 Standard System Facilities

In addition to the previously listed features, the system unit provides the following:

■TOD/NVRAM for clock and identification functions

■Flash PROM for operating system initialization. The flash PROM is re-programmable through UNIX and OBP utilities.

■Single LED for status. If LED is lighted, the system unit has power and some functional intelligence through OBP.

C.3 Motherboard

FIGURE C-12illustrates a block diagram of the system unit motherboard.

Appendix C Functional Description C-43