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C-6
Sun Ultra 5 Service Manual • February 2000
FIGURE C-2
10-/100-Mbit Ethernet Functional Block Diagram
C.1.2.6
EBus2 Interface
The PCIO ASIC provides the EBus2 interface to connect as many as eight 8-bit
devices. The following devices reside on the EBus2:
■
Audio CODEC
■
SuperIO
■
Serial communications controller
■
NVRAM/TOD
■
Flash PROM
Up to eight single- or multi-function Intel-style 8-bit devices can be accommodated.
Four internal DMA engines can be attached to any of the 8-bit devices, buffering
data streams in 128-byte FIFOs for each channel.
The EBus2 channel engine provides access to several general purpose AUXIO
(auxiliary IO) lines, which are used to control miscellaneous system functions.
PCI
Common
Magnetics
PCIO
PHY
50 MHz
Twister
Twisted
pair
RJ45
Rcv MII
Serial MII
Xmit MII
10BASE T Rcv
10BASE T Xmit
100BASE T
100BASE T
Xmit
Rcv
ASIC
100BASE T
100BASE T
Xmit
Rcv
Содержание Ultra 5
Страница 12: ...xii Sun Ultra 5 Service Manual February 2000...
Страница 16: ...xvi Sun Ultra 5 Service Manual February 2000 FIGURE C 20 JP1 JP2 Jumper Settings for the Flash PROM C 39...
Страница 40: ...1 2 Sun Ultra 5 Service Manual February 2000 FIGURE 1 1 Ultra 5 System Monitor System Keyboard Mouse...
Страница 46: ...1 8 Sun Ultra 5 Service Manual February 2000...
Страница 72: ...3 24 Sun Ultra 5 Service Manual February 2000...
Страница 102: ...4 30 Sun Ultra 5 Service Manual February 2000...
Страница 112: ...5 10 Sun Ultra 5 Service Manual February 2000...
Страница 168: ...8 22 Sun Ultra 5 Service Manual February 2000...
Страница 186: ...A 10 Sun Ultra 5 Service Manual February 2000...
Страница 246: ...D 6 Sun Ultra 5 Service Manual February 2000...