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Functional Description
2-13
2
EPROM
Four 44-pin PLCC/CLCC EPROM sockets for 27C102JK or
27C202JK type EPROMs. They are:
❏ Organized in two 32-bit wide banks supporting 8-, 16-, and
32-bit read accesses
❏ Controlled by the VMEchip2
❏ Mapped to local bus address 0 following a local bus reset
Ð This allows the MC88100 to start executing code at address
0 following a reset.
Programmable EPROM Features
❏ Map decoder
❏ Access time
❏ When accessible at address 0
Static RAM
The MVME187 includes 128KB of 32-bit wide 100 ns static RAM
(SRAM), which:
❏ Supports 8-, 16-, and 32-bit wide accesses.
❏ Allows debugger operation and execution of limited
diagnostics without the DRAM mezzanine.
❏ Is controlled by the VMEchip2; the access time is
programmable.