Alpha Microsystems AM-647 Especificaciones descargar pdf (Pagina 8)

Page 3Installation Instructions: Roadrunner 030 & 040 AM-1000 / AM-1200 Upgrade

2.AM-174 66MHz Specific features:

a.MC68040 CPU.

b.33MHz bus clock rate.

c.66MHz CPU clock rate.

d.4KB internal instruction cache

e.32KB external cache.

f.One on-board (SIMM) single inline memory  module expansion slot,

which supports 4, 8, 16, and 32 megabyte 70ns DRAMs.

3.AM-174 80MHz Specific features:

a.MC68040 CPU.

b.40MHz bus clock rate.

c.80MHz CPU clock rate.

d.4KB internal instruction cache

e.32KB external cache.

f.One on-board (SIMM) single inline memory  module expansion slot,

which supports 4, 8, 16, and 32 megabyte 60ns DRAMs.

4.Features applicable all Roadrunner boards:

a.32-bit bidirectional data path.

b.32-bit address path.

c.Seven interrupt levels with vector capability.

d.DMA channel capability.

e.On-board bootstrap PROM containing several boot routines that

enable you to change the I/O device the computer boots from. Also

contains full power-up self-test of various system features.

f.On-board high performance SCSI expansion interface, which

supports both SCSI-1 and SCSI-2 peripherals.

PDI-00172-10, Rev. A03

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Alpha Microsystems AM-647 Especificaciones Pagina 8