Chapter 3 block diagrams, Figure 3.1 basic functional block diagram, Chapter 3 – SMSC LAN91C111 User Manual
Page 11: Block diagrams
10/100 Non-PCI Ethernet Single Chip MAC + PHY
Datasheet
SMSC LAN91C111 REV C
11
Revision 1.91 (08-18-08)
DATASHEET
Chapter 3 Block Diagrams
The diagram shown in Figure 3.1, "Basic Functional Block Diagram", describes the device basic
functional blocks. The SMSC LAN91C111 is a single chip solution for embedded designs with minimal
Host and external supporting devices required to implement 10/100 Ethernet connectivity solutions.
The optional Serial EEPROM is used to store information relating to default IO offset parameters as
well as which of the Interrupt line are used by the host.
Figure 3.1 Basic Functional Block Diagram
PHY
Core
Ethernet
MAC
LAN91C111
Internal IEEE 802.3 MII (Media
Independent Interface)
Serial
EEProm
(Optional)
ISA,Embedded
Processor
Transformer
RJ45
Minimal LAN91C111
Configuration
Host System
TX/RX Buffer (8K)