Sun Microsystems Sun Blade 100, Руководство по обслуживанию

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Appendix C Functional Description C-9
FIGURE C-4
Smart Card Interface Header
C.2.9 NVRAM/TOD
The system requires at least 8 Kbytes of non-volatile static RAM to store the
variables for the operating system and a real time clock to do timekeeping. This
device has both functions integrated plus the self-contained battery. It also has a
programmable alarm interrupt output which can be used by the software to enable
auto-shutdown (auto suspend/resume) as a power management choice.
C.3 Reset Types
The CPU has several types of resets. The resets affect different levels of the system
devices and the processor. As an example, a Power-on Reset (POR) will reset all
devices on the motherboard as well as any PCI card that is plugged in. A soft reset is
under software control and is used to reset particular registers that reside in the
devices on the motherboard.
6
5
SC_INT_L
7
1 2
3 4
9
8
10
+12V
I2C_CLK_L
+5V I2C_DATA_L