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Functional Description
PCI/PMC Expansion Capability
3
Real-Time Clock & NVRAM
3-10
The MVME2100 provides additional PCI capability through the use of a
114-pin Mictor connector that is compatible with the Genesis II series of
VMEbus processor boards. By using existing PMCspan carrier boards, up
to four additional PMC boards can be used.
The ST-Thomson M48T59 is used by the MVME2100 to provide 8KB of
non-volatile static RAM and a real-time clock. It consists of two parts:
A 28-pin 330mil SO device which contains the RTC, the oscillator,
8KB of SRAM, and gold-plated sockets for the SNAPHAT battery.
A SNAPHAT battery that houses the crystal and the battery.
Note
Refer to the MK48T59 data sheets listed in Appendix A
Related Documentation
for programming information.
Computer Group Literature Center Web Site
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