KSZ8864RMN Datasheet PDF - Micrel Semiconductor
| Part Number | KSZ8864RMN | |
| Description | Integrated 4-Port 10/100 Managed Switch | |
| Manufacturers | Micrel Semiconductor | |
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KSZ8864RMN
Integrated 4-Port 10/100 Managed Switch
with Two MACs MII or RMII Interfaces
Rev 1.5
General Description
The KSZ8864RMN is a highly-integrated, Layer 2
managed 4-port switch with optimized design, plentiful
features and smallest package size. It is designed for cost-
sensitive 10/100Mbps 4-port switch systems with on-chip
termination, lowest-power consumption, and small
package to save system cost. It has 1.4Gbps high-
performance memory bandwidth, shared memory-based
switch fabric with full non-blocking configuration. It also
provides an extensive feature set such as the power
management, programmable rate limiting and priority ratio,
tag/port-based VLAN, packet filtering, quality of service
(QoS), four queue prioritization, management interface,
MIB counters. Port 3 and Port 4 support either MII or RMII
interfaces with SW3-MII/RMII and SW4-MII/RMII (see
Functional Diagram) for KSZ8864RMN data interface. An
industrial temperature-grade version of the KSZ8864RMNI
and a qualified AEC-Q100 Automotive version of the
KSZ8864RMNU are also available (see “Ordering
Information” section).The KSZ8864RMN provides multiple
CPU control/data interfaces to effectively address both
current and emerging fast Ethernet applications.
The KSZ8864RMN consists of 10/100 fast Ethernet PHYs
with patented and enhanced mixed-signal technology,
media access control (MAC) units, a high-speed non-
blocking switch fabric, a dedicated address lookup engine,
and an on-chip frame buffer memory.
The KSZ8864RMN contains four MACs and two PHYs.
The two PHYs support the 10/100Base-T/TX.
All registers of MACs and PHYs units can be managed by
the control interface of SPI or the SMI. MIIM registers of
the PHYs can be accessed through the MDC/MDIO
interface. EEPROM can set all control registers by I2C
controller interface for the unmanaged mode.
Datasheets and support documentation can be found on
Micrel’s web site at: www.micrel.com.
Functional Diagram
Micrel Inc. • 2180 Fortune Drive • San Jose, CA 95131 • USA • tel +1 (408) 944-0800 • fax + 1 (408) 474-1000 • http://www.micrel.com
April 2012
M9999-043012-1.5
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Micrel, Inc.
KSZ8864RMN
Broadcast Storm Protection.............................................................................................................................................. 29
MII Interface Operation ..................................................................................................................................................... 29
Switch MAC3/MAC4 SW3/SW4-MII Interface .................................................................................................................. 29
Switch MAC3/MAC4 SW3/SW4-RMII Interface................................................................................................................ 31
Advanced Functionality ......................................................................................................................................................... 33
Spanning Tree Support..................................................................................................................................................... 34
Rapid Spanning Tree Support .......................................................................................................................................... 35
Tail Tagging Mode ............................................................................................................................................................ 36
IGMP Support ................................................................................................................................................................... 37
Port Mirroring Support ...................................................................................................................................................... 37
VLAN Support ................................................................................................................................................................... 37
Rate Limiting Support ....................................................................................................................................................... 38
Ingress Rate Limit ............................................................................................................................................................. 38
Egress Rate Limit.............................................................................................................................................................. 39
Transmit Queue Ratio Programming ................................................................................................................................ 39
Filtering for Self-Address, Unknown Unicast/Multicast Address and Unknown VID Packet/IP Multicast ........................ 39
Configuration Interface ..................................................................................................................................................... 39
SPI Slave Serial Bus Configuration .................................................................................................................................. 40
MII Management Interface (MIIM) .................................................................................................................................... 43
Serial Management Interface (SMI).................................................................................................................................. 43
Register Description.............................................................................................................................................................. 45
Global Registers ............................................................................................................................................................... 46
Port Registers ................................................................................................................................................................... 56
Advanced Control Registers ............................................................................................................................................. 65
Data Rate Selection Table in 100BT ................................................................................................................................ 80
Data Rate Selection Table in 10BT .................................................................................................................................. 81
Static MAC Address Table .................................................................................................................................................... 83
VLAN Table ........................................................................................................................................................................... 86
Dynamic MAC Address Table ............................................................................................................................................... 89
MIB (Management Information Base) Counters ................................................................................................................... 91
For Port 1 .......................................................................................................................................................................... 91
All Ports Dropped Packet MIB Counters .......................................................................................................................... 92
Format of “All Dropped Packet” MMIB Counter................................................................................................................ 92
MIIM Registers ...................................................................................................................................................................... 94
Absolute Maximum Ratings .................................................................................................................................................. 98
Operating Ratings ................................................................................................................................................................. 98
Electrical Characteristics....................................................................................................................................................... 98
April 2012
5 M9999-043012-1.5
Preview 5 Page |
Part DetailsOn this page, you can learn information such as the schematic, equivalent, pinout, replacement, circuit, and manual for KSZ8864RMN electronic component. |
| Information | Total 30 Pages | |
| Link URL | [ Copy URL to Clipboard ] | |
| Download | [ KSZ8864RMN.PDF Datasheet ] | |
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Featured Datasheets
| Part Number | Description | MFRS |
| KSZ8864RMN | The function is Integrated 4-Port 10/100 Managed Switch. Micrel Semiconductor | |
| KSZ8864RMNUB | The function is Integrated 4-Port 10/100 Managed Switch. Microchip |  |
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