1-4 SunFastEthernetAdapter UserGuide—November1994
1
Figure 1-2 SunFastEthernet Block Diagram
QEC ASIC
Buffer
memory
Local bus
BigMAC ASIC
RX
buffer
BabyBAC
Transceiver
XCVR
management
register
Ultra DB40
TX
buffer
SBus
MII Interface
RJ45
Hub
External transceiver
EPROM
