KSZ8775CLX Datasheet PDF - Microchip
| Part Number | KSZ8775CLX | |
| Description | Integrated 5-Port 10/100 Managed Ethernet Switch | |
| Manufacturers | Microchip | |
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There is a preview and KSZ8775CLX download ( pdf file ) link at the bottom of this page. Total 30 Pages | ||
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KSZ8775CLX
Integrated 5–Port 10/100 Managed Ethernet
Switch with Port 4 RMII and Port 5 RGMII/MII/
RMII Interfaces
Features
• Management Capabilities
- The KSZ8775CLX includes all the functions
of a 10/100BASE-T/TX switch system, which
combines a switch engine, frame buffer
management, address look-up table, queue
management, MIB counters, media access
controllers (MAC), and PHY transceivers
- Non-blocking store-and-forward switch fabric
assures fast packet delivery by utilizing a
1024-entry forwarding table
- Port mirroring/monitoring/sniffing: ingress
and/or egress traffic to any port
- MIB counters for fully compliant statistics
gathering - 36 counters per port
- Hardware support for port-based flush and
freeze command in MIB counter.
- Multiple loopback of remote, PHY, and MAC
modes support for the diagnostics
- Rapid spanning tree support (RSTP) for
topology management and ring/linear
recovery
• Robust PHY Ports
- Four integrated IEEE 802.3/802.3u-compliant
Ethernet transceivers supporting 10Base-T
and 100BASE-TX
- 802.1az EEE supported
- On-chip termination resistors and internal
biasing for differential pairs to reduce power
- HP Auto MDI/MDI-X™ crossover support
eliminates the need to differentiate between
straight or crossover cables in applications
• MAC and GMAC Ports
- Four internal media access control (MAC1 to
MAC4) units and one internal Gigabit media
access control (GMAC5) unit
- RGMII, MII, or RMII interfaces support for the
Port 5 GMAC5 with uplink and RMII interface
for Port 4 MAC4
- 2 kb jumbo packet support
- Tail tagging mode (one byte added before
FCS) support on Port 5 to inform the
processor which ingress port receives the
packet and its priority
- Supports reduced media independent inter-
face (RMII) with 50 MHz reference clock out-
put
- Supports media independent interface (MII)
in either PHY mode or MAC mode on Port 5
- LinkMD® cable diagnostic capabilities for
determining cable opens, shorts, and length
• Advanced Switch Capabilities
- Non-blocking store-and-forward switch fabric
assures fast packet delivery by utilizing a
1024-entry forwarding table
- 64kb frame buffer RAM
- IEEE 802.1q VLAN support for up to 128
active VLAN groups (full-range 4096 of VLAN
IDs)
- IEEE 802.1p/q tag insertion or removal on a
per port basis (egress)
- VLAN ID tag/untag options on per port basis
- Fully compliant with IEEE 802.3/802.3u stan-
dards
- IEEE 802.3x full-duplex with force mode
option and half-duplex back-pressure colli-
sion flow control
- IEEE 802.1w rapid spanning tree protocol
support
- IGMP v1/v2/v3 snooping for multicast packet
filtering
- QoS/CoS packets prioritization support:
802.1p, DiffServ-based and re-mapping of
802.1p priority field per port basis on four
priority levels
- IPv4/IPv6 QoS support
- IPv6 multicast listener discovery (MLD)
snooping
- Programmable rate limiting at the ingress and
egress ports on a per port basis
- Jitter-free per-packet-based rate limiting
support
- Tail tagging mode (one byte added before
FCS) support on Port 5 to inform the proces-
sor which ingress port receives the packet
and its priority
- Broadcast storm protection with percentage
control (global and per port basis)
DS00002129C-page 1
2015 Microchip Technology Inc.
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KSZ8775CLX
1.0 INTRODUCTION
1.1 General Description
The KSZ8775CLX is a highly integrated, Layer 2-managed, five-port switch with numerous features designed to reduce
system cost. It is intended for cost-sensitive applications requiring three 10/100 Mbps copper ports, one RMII on Port
4, and one 10/100/1000Mbps Gigabit uplink port on Port 5. The KSZ8775CLX incorporates a small package outline, the
lowest power consumption with internal biasing, and on-chip termination. Its extensive set of features include enhanced
power management, programmable rate limiting and priority ratio, tagged and port-based VLAN, port-based security
and ACL rule-based packet filtering technology, QoS priority with four queues, management interfaces, enhanced MIB
counters, high-performance memory bandwidth, and a shared memory-based switch fabric with non-blocking support.
The KSZ8775CLX provides support for multiple CPU data interfaces to effectively address both current and emerging
fast Ethernet and Gigabit Ethernet applications where the Port 5 GMAC can be configured to any of the RGMII, MII, and
RMII modes.
The KSZ8775CLX product is built upon industry-leading analog and digital technology, with features designed to offload
host processing and streamline the overall design.
• Three integrated 10/100BASE-T/TX MAC/PHYs
• One integrated 10/100BASE-T/TX MAC with RMII interface
• One integrated 10/100/1000Base-T/TX GMAC with selectable RGMII, MII, and RMII interfaces
• Small 80-pin LQFP package
A robust assortment of power management features including Energy Efficient Ethernet (EEE), power management
event (PME), and Wake-on-LAN (WoL) have been designed in to satisfy energy efficient environments.
All registers in the MAC/PHY units can be managed through the SPI interface. MIIM PHY registers can be accessed
through the MDC/MDIO interface.
FIGURE 1-1:
BLOCK DIAGRAM
2015 Microchip Technology Inc.
DS00002129C-page 5
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| Information | Total 30 Pages | |
| Link URL | [ Copy URL to Clipboard ] | |
| Download | [ KSZ8775CLX.PDF Datasheet ] | |
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