gshv
Joined: 01 Feb 2003
Posts: 7898
Location: Fairfax, VA USA
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 Posted: Sat Jun 03, 2006 12:26 am Post subject: |
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It's not a processor. It's a Ultrasparc data buffer chip:
| Quote: | UltraSparc requires an external chip, dubbed the
UltraSparc data buffer (UDB), to buffer the cache from
the system bus. This chip performs two primary func-
tions. First, it contains queues that buffer the high-speed
cache from the slower system bus, which can run at ei-
ther one-half or one-third of the CPU frequency. The
UDB chip also converts data from the byte parity used
for the cache to the more reliable ECC used by the sys-
tem bus. Addresses and control signals for the 128-bit
system bus are generated by the UltraSparc chip. |
Gennadiy |
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