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PDF AX88658AB Data sheet ( Hoja de datos )
| Número de pieza | AX88658AB | |
| Descripción | 8-Port 10/100/1000BASE-T Ethernet Switch | |
| Fabricantes | ASIX Electronics | |
| Logotipo |  |
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AX88658 AB
8-Port 10/100/1000BASE-T Ethernet Switch
8-Port Gigabit Ethernet Switch with Embedded Memory
Document No.: AX88658AB / V1.0 / April.2nd,2004
Features
• 8-port Gigabit Ethernet switch integrating MACs,
packet buffer memory and switching engine with
• Programmable aging mechanism for the two-way
4K MAC addresses table
RGMII/GMII/MII interface
• Two hashing schemes: direct and XOR mode.
• RGMII support REV 1.3 with 3.3V IO
• Support ingress port security mode, incoming
• Full Duplex 1000 Mbit/s.
packets with unknown source MAC address could
• Full and Half Duplex 10/100 Mbit/s
• Supports auto-sensing or manual selection for
speed and duplex capability with an embedded
MPU
• Store-and-forward operation support
be dropped
• Egress/Ingress Port Mirroring for Sniffer function.
• Flow control
- Full-duplex IEEE 802.3x flow control
- Half-duplex back pressure flow control
• Performs full wire-speed switching with Head of
Line (HOL) blocking prevention
- Optional smart flow control for mix-speed
connection
• Supports up to 8 Port-based VLAN Groups
• Supports broadcast storm filtering.
• Quality-of-Service provisioning on 802.1P tag and
port-pairs with two priority queues
• By-port Egress/Ingress bandwidth (rate) control
• Embedded 128K Byte SRAM for packet buffer
• Supports packet length up to 1522 bytes
• Supports 9K/12K byte JUBMO packet
• Supports port-based trunking for high-bandwidth
links
• Provides 5 GPIO ports
• Provides EEPROM interface for auto-configuration
• System clock input is one 25MHz Crystal and one
125MHz from PHY GCLK output
• 1.8 and 3.3V operations
• 3.3 I/Os and packaged in 272-pin BGA
• Integrated two-way Address-Lookup engine and
table for 4K MAC addresses
Product Description
The AX88658A is an 8-port 10/100/1000 Mbps Ethernet switch with, GMII/RGMII or MII Interface. The switch
controller provides network system manufacturers the ideal platform for building smart and cost-effective backbone
switches for small to medium sized businesses.
The AX88658A 8-port 10/100/100 BASE-T single chip switch controllers combine the benefits of network
simplicity, flexibility and high integration. Its highly integrated feature set enables network system manufacturers to
build smart switches for the fast-growing small to medium business market segment.
Benefits of AX88658A Switches are below.
Simplicity
Provides a smart, simple and low maintenance plug-and-play network interconnect system for small to
medium size businesses
Flexibility
Highly scalable configuration allows system manufacturers to enable or disable a range of features to best
meet their target price point.
Integration
Highly integrated design drives down overall switch manufacturing costs.
Target Applications
8-port Gigabit Layer 2 Switches for workgroup
High-port count Layer 2 switches with trunking
High performance solution of Ethernet backbone
ASIX ELECTRONICS CORPORATION
First Released Date: 11/07/2002
4F, NO.8, Hsin Ann Rd., Science-based Industrial Park, Hsin-Chu City, Taiwan, R.O.C.
TEL: 886-3-579-9500
FAX: 886-3-563-9799
http://www.asix.com.tw
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AX88658AB 8-Port 10/100/1000BASE-T Ethernet Switch CONFIDENTIAL
FIGURES
FIG-1 AX88658A BLOCK DIAGRAM ..................................................................................................................................6
FIG-2 TOP VIEW OF AX88658A AB PIN DIAGRAM............................................................................................................7
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AX88658AB 8-Port 10/100/1000BASE-T Ethernet Switch CONFIDENTIAL
RXD6[7:0]
I/PD A9, D10, C10, Receive Data: Please references section 2.1.1.
B10, A10,
D11, C11, B11
2.1.8 RGMII/GMII/MII Interface Port 7
Signal Name I/O
GTX_CLK7
O
Pin No.
Description
A5 125MHz Clock Output: Please references section 2.1.1.
TX_EN7
O B5 Transmit Enable: Please references section 2.1.1.
TXD7[7:0]
TX_CLK7
COL7
CRS7
RX_DV7
RX_CLK7
RXD7[7:0]
O C6, B6, A6, Transmit Data: Please references section 2.1.1.
C7, B7, A7,
B8, A8
I/PD B1 MII Transmit Clock Input: Please references section 2.1.1.
I/PD C1 Collision Detect: Please references section 2.1.1.
I/PD C2 Carrier Sense: Please references section 2.1.1.
I B2 Receive Data Valid: Please references section 2.1.1.
I A1 Receive Clock Input: Please references section 2.1.1.
I/PD A2, B3, A3, Receive Data: Please references section 2.1.1.
C4, B4, A4,
D5, C5
2.2 Miscellaneous
Signal Name
NC
NC
PLL_Setting
NC
NC
NC
NC
NC
NC
NC
NC
NC
NC
NC
NC
NC
NC
NC
NC
NC
E_8051_EN
NC
NC
NC
NC
I/O
I
Pin No.
L1
L2
L3
M2
M3
M4
N1
N2
N3
P1
P2
P3
R1
R2
R3
R4
T3
T4
F4, F3
G2
D4
E1
H3
G3
C3
Description
NC
NC
Pull Hi with 4.7K resistor
NC
NC
NC
NC
NC
NC
NC
NC
NC
NC
NC
NC
NC
NC
NC
NC
NC
Pull low, using external 8051, NC or Pull hi, using internal 8051
NC
NC
NC
NC
11 ASIX ELECTRONICS CORPORATION
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