ACD82224 Datasheet, PDF (6/77 Pages) List of Unclassifed Manufacturers – 24 Ports 10/100 Fast Ethernet Switch

2. MAJOR FEATURES
• 24 ports 10/100 Fast Ethernet Switch (auto-sensing or manual selection)
• Reduced MII interface, with selectable MII for the last port
• Capable of Trunking for up to 800 Mbps link
• Full & half duplex operation
• Speed auto negotiation through MDIO
• 4.8 Gbps aggregated throughput, true non-blocking switch architecture, full wire speed
forwarding
• Built-in storage of 2,048 MAC address
• Supports up to 11K MAC addresses with the ACD80800
• Shared frame buffer with starvation control
• Memory interface with ZBT^TM or compatible SRAM at 100MHz
• Automatic source address learning
• Zero-Packet Loss back-pressure flow control under half duplex mode
• 802.3x pause frame flow control under full duplex mode
• Store-and-forward switch mode
• Port based V-LAN support for up to 4 VLANs
• UART type CPU management interface
• RMON and SNMP support with ACD80900
• Status LEDs: Link, Speed, Full Duplex, Transmit, Receive, Collision, and Frame Error
• 388-pin PBGA package
• Power: core 2.5V, I/O 3.3V with 5V tolerance
3. SYSTEM BLOCK DIAGRAM
PMD/
PHY-0
PMD/
PHY-1
PMD/
PHY-
(xx-2)
PMD/
PHY-
(xx-1)
FIFO
FIFO
FIFO
FIFO
MAC-0
MAC-1
Buffer
Buffer
Buffer
Buffer
FIFO
FIFO
FIFO
FIFO
MAC-
(xx-2)
MAC-
(xx-1)
xx=16 for ACD82216
24 for ACD82224
Buffer
Buffer
Buffer
Buffer
ACD822xx
Lookup Engine
(2K MAC Addr.)
BIST Handler
LED Controller
MX
Queue Manager
DMX
ARL Interface
SRAM Interface
MIB Interface
ARL
ACD80800
(11K MAC Addr.)
(optional)
ZBT or
The Compatible
SRAM
MIB
ACD80900
(optional)
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