w89c840af Winbond Electronics Corp America, w89c840af Datasheet - Page 5

• Manufacturer Part Number: w89c840af
• Description: 100/10mbps Ethernet Controller
• Manufacturer: Winbond Electronics Corp America

Block Diagram
System Diagram
PCI
C o n t r o l l e r
long word
aligning buffer
PCI interface
data driver
PCI bus slave
M e m o r y
configuration
S y s t e m
controller
H o s t
registers
PCI bus
master
W 8 9 C 8 4 0 A F T y p i c a l A p p l i c a t i o n
Fig. 2 W89C840AF Block Diagram
W 8 9 C 8 4 0 A F
F i g . 3
transmit data
DMA machine
receive data
DMA machine
TX FIFO
RX FIFO
control
registers
registers
status
-5 -
P h y s i c a l l a y e r
C o n t r o l l e r &
T r a n s c e i v e r
Expansion
ROM
interface
Media
Access
Controller
EEPROM
access
interface
MII
control
signals
MII
data
buffer
Publication Release Date:October 2000
Revision 1.01
M e d i a
memory
interface
MII
W89C840AF