HP B160L Manual do Utilizador Página 70

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PA-RISC Buses GSC/HSC
Multiplexed address and data
Transfer rates of up to 142-256MB/s (depending on bus variant see below)
5V signalling voltage
Bus variants
1. Original GSC (GSC-1X) with peak data rate 142MB/s
2. GSC+ ( “Extended GSC” ) with a maximum clock of 40MHz and peak data rates of 160MB/s
(132MB/s with 33MHz, 144MB/s with 36MHz)
3. GSC-1.5X with additional extended write operations
4. GSC-2x with a peak data rate of 256MB/s
Expansion cards variants
EISA-like
Both GSC-1X and GSC-2X (also probably GSC-1.5X)
100-pin (50×2) female EBBL card connector
Bulkhead is left of the card
GIO
Limited to the 712 workstation
GSC-1X
80-pin (40×2) female EBBL card connector (GIO FF)
Bulkhead is right of the card (GIO FF)
HSC ( “High-speed System Connect” )
On several server systems, for example D-Class and K-Class
Cards are all GSC+
100-pin (50×2) male pin & socket with groundplane
Bulkhead is above the card
Identical to GSC-M cards except different bulkhead (external connections plate)
GSC-M ( “Mezzanine” )
Found on PA-RISC VME computers (74x)
GSC-1X
100-pin (50×2) male pin & socket with groundplane
Bulkhead is below the card
Cards are very rare
Identical to HSC cards except different bulkhead (external connections plate)
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