AM79C971VCW Advanced Micro Devices, AM79C971VCW Datasheet - Page 91

• Manufacturer Part Number: AM79C971VCW
• Description: PCnet-FAST Single-Chip Full-Duplex 10/100 Mbps Ethernet Controller for PCI Local Bus
• Manufacturer: Advanced Micro Devices

Figure 48. SRAM Only Configuration for the Expansion Bus
Interface
PCI Bus
Am79C971
Management
Unit
Figure 49. Block Diagram With External SRAM
Buffer
Unit
EBUA_EBA[7:0]
EBDA[15:8]
AS_EBOE
ERAMCS
EBD[7:0]
EBWE
FIFO
FIFO
Bus
Xmt
Bus
Rcv
Expansion Bus Interface
Am79C971
Control
FIFO
D-FF
'374
MAC
FIFO
MAC
FIFO
Rcv
Xmt
I/O[7:0]
A[14:8]
A[7:0]
WE
CS
OE
I/O[7:0]
A[14:8]
A[7:0]
WE
CS
OE
802.3
MAC
Core
32K x 8 SRAM
32K x 8 SRAM
20550D-52
20550D-51
91