碌
PD98431
8-Port 10/100 Mbps Ethernet
TM
Controller
Low cost solution by highly integrated MAC
(Media Access Control) function for Fast Ethernet
Features
鈥?8-port 10/100 Mbps Ethernet MAC compliant with
IEEE 802.3 and IEEE 802.3u
鈥?MII(Media Independent Interface) and 10Mbps serial
interface for physical layer
鈥?Independent receive and transmit FIFO (Rx : 2K
bytes, Tx : 512 bytes) for each port
鈥?High performance FIFO data bus interface : 32/64bit 麓
66 MHz
鈥?Full duplex operation with IEEE 802.3x flow control
鈥?Statistics counters for RMON/SNMP support
鈥?Unicast, Multicast and Broadcast address filtering
鈥?VLAN frame detection
鈥?Port mirroring function
鈥?JTAG support
鈥?Power supply : 3.3 V
鈥?Package : 352-pin Plastic BGA
Block Diagram
MII/10M
Serial
x8
PORT #7
PORT #6
PORT #5
PORT #4
PORT #3
PORT #2
PORT #1
PORT #0
FIFO
DATA
Bus
FIFO DATA
Common
Bus
Interface
Tx FIFO
Rx FIFO
10/100 Mbps
MAC
Register Set / Statistics Counter
CPU
Bus
CPU Bus
Interface
MII
Serial
Management
MII Management Interface
JTAG
TEST
Port
The information in this document is subject to change without notice. Before using this document, please
confirm that this is the latest version.
Not all devices/types available in every country. Please check with local NEC representative for
availability and additional information.
Document No. S13483EJ3V0PF00 (3rd edition)
Date Published December 2001 NS CP(K)
Printed in Japan
1998
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