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KSZ8895MQ 데이터시트 PDF




Micrel Semiconductor에서 제조한 전자 부품 KSZ8895MQ은 전자 산업 및 응용 분야에서
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부품번호 KSZ8895MQ 기능
기능 Integrated 5-Port 10/100 Managed Ethernet Switch
제조업체 Micrel Semiconductor
로고 Micrel Semiconductor 로고


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KSZ8895MQ 데이터시트, 핀배열, 회로
KSZ8895MQ/RQ/FMQ
Integrated 5-Port 10/100 Managed Ethernet
Switch with MII/RMII interface
Rev. 1.2
General Description
The KSZ8895MQ/RQ/FMQ is a highly-integrated Layer
2 managed five-port switch with optimized design and
plentiful features. It is designed for cost-sensitive
10/100Mbps five-port switch systems with lowest power
consumption, on-chip termination and internal core
power controller. These features will save more system
cost. It supports high-performance memory bandwidth,
shared memory based switch fabric with non-blocking
configuration. It also provides an extensive feature set
such as power management, programmable rate limit
and priority ratio, tag/port-based VLAN, packets filtering,
four queues QoS prioritization, management interfaces
and MIB counters. KSZ8895 family provides multiple
CPU data interfaces to effectively address both current
and emerging fast Ethernet applications when port 5 is
configured to separate MAC5 with SW5-MII/RMII and
PHY5 with P5-MII/RMII interfaces.
The configurations provided by the KSZ8895 family
enables the flexibility to meet different requirements:
KSZ8895MQ: Five 10/100Base-T/TX transceivers,
one SW5-MII and one P5-MII interface
KSZ8895RQ: Five 10/100Base-T/TX transceivers,
one SW5-RMII and one P5-RMII interface
KSZ8895FMQ: Three 10/100Base-T/TX transceiver
on Ports 1, 2, 5 and two 100Base-FX transceivers
on Ports 3, 4, one SW5-MII and one P5-MII
interface
All registers of MACs and PHYs units can be managed
by the SPI or the SMI interface. MIIM registers can be
accessed through the MDC/MDIO interface. EEPROM
can set all control registers for the unmanaged mode.
Functional Diagram
www.DataSheet4U.com
Note: SW5 indicates the MAC5 of the switch side, P5 indicates the PHY5 of the Port 5.
Micrel Inc. • 2180 Fortune Drive • San Jose, CA 95131 • USA • tel +1 (408) 944-0800 • fax + 1 (408) 474-1000 • http://www.micrel.com
January 2011
M9999-012011-1.2




KSZ8895MQ pdf, 반도체, 판매, 대치품
Micrel, Inc.
KSZ8895MQ/RQ/FMQ
Contents
Pin Configuration ..........................................................................................................................................................13
Pin Configuration ..........................................................................................................................................................13
Pin Description ..............................................................................................................................................................14
Pin for Strap-in Options................................................................................................................................................22
Introduction ...................................................................................................................................................................25
Functional Overview: Physical Layer Transceiver ....................................................................................................25
100BASE-TX Transmit ...............................................................................................................................................25
100BASE-TX Receive ................................................................................................................................................25
PLL Clock Synthesizer................................................................................................................................................26
Scrambler/De-Scrambler (100BASE-TX only)............................................................................................................26
100BASE-FX Operation..............................................................................................................................................26
100BASE-FX Signal Detection ...................................................................................................................................26
100BASE-FX far End fault ..........................................................................................................................................26
10BASE-T Transmit....................................................................................................................................................26
10BASE-T Receive .....................................................................................................................................................26
MDI/MDI-X Auto Crossover ........................................................................................................................................26
Straight Cable .........................................................................................................................................................27
Crossover Cable .....................................................................................................................................................28
Auto-Negotiation .........................................................................................................................................................28
On-chip Termination Resistors ...................................................................................................................................30
Internal 1.2V LDO Controller ......................................................................................................................................30
Functional Overview: Power Management .................................................................................................................30
Normal Operation Mode .............................................................................................................................................30
Energy Detect Mode ...................................................................................................................................................31
Soft Power Down Mode ..............................................................................................................................................31
Power Saving Mode....................................................................................................................................................31
Port based Power Down Mode ...................................................................................................................................31
Functional Overview: Switch Core ..............................................................................................................................31
Address Look-Up ........................................................................................................................................................31
Learning ......................................................................................................................................................................31
Migration .....................................................................................................................................................................32
Aging ...........................................................................................................................................................................32
Forwarding ..................................................................................................................................................................32
Switching Engine ........................................................................................................................................................32
Media Access Controller (MAC) Operation ................................................................................................................32
Inter-Packet Gap (IPG) ...........................................................................................................................................32
Backoff Algorithm....................................................................................................................................................32
Late Collision ..........................................................................................................................................................32
www.DataISllheegeat4l UFr.caommes .........................................................................................................................................................32
Flow Control............................................................................................................................................................33
Half-Duplex Back Pressure ....................................................................................................................................36
Broadcast Storm Protection....................................................................................................................................36
MII Interface Operation ...............................................................................................................................................37
January 2011
4 M9999-012011-1.2

4페이지










KSZ8895MQ 전자부품, 판매, 대치품
Micrel, Inc.
KSZ8895MQ/RQ/FMQ
Register 76 (0x4C): Port 4 Control 12 ....................................................................................................................70
Register 92 (0x5C): Port 5 Control 12 ....................................................................................................................70
Register 29 (0x1D): Port 1 Control 13 ....................................................................................................................71
Register 45 (0x2D): Port 2 Control 13 ....................................................................................................................71
Register 61 (0x3D): Port 3 Control 13 ....................................................................................................................71
Register 77 (0x4D): Port 4 Control 13 ....................................................................................................................71
Register 93 (0x5D): Port 5 Control 13 ....................................................................................................................71
Register 30 (0x1E): Port 1 Status 1........................................................................................................................72
Register 46 (0x2E): Port 2 Status 1........................................................................................................................72
Register 62 (0x3E): Port 3 Status 1........................................................................................................................72
Register 78 (0x4E): Port 4 Status 1........................................................................................................................72
Register 94 (0x5E): Port 5 Status 1........................................................................................................................72
Register 31 (0x1F): Port 1 Control 14 and Status 2 ...............................................................................................72
Register 47 (0x2F): Port 2 Control 14 and Status 2 ...............................................................................................72
Register 63 (0x3F): Port 3 Control 14 and Status 2 ...............................................................................................72
Register 79 (0x4F): Port 4 Control 14 and Status 2 ...............................................................................................72
Register 95 (0x5F): Port 5 Control 14 and Status 2 ...............................................................................................72
Advanced Control Registers .......................................................................................................................................73
Register 104 (0x68): MAC Address Register 0 ......................................................................................................73
Register 105 (0x69): MAC Address Register 1 ......................................................................................................73
Register 106 (0x6A): MAC Address Register 2......................................................................................................73
Register 107 (0x6B): MAC Address Register 3......................................................................................................73
Register 108 (0x6C): MAC Address Register 4......................................................................................................73
Register 109 (0X6D): MAC Address Register 5 .....................................................................................................73
Register 110 (0x6E): Indirect Access Control 0 .....................................................................................................73
Register 111 (0x6F): Indirect Access Control 1......................................................................................................74
Register 112 (0x70): Indirect Data Register 8 ........................................................................................................74
Register 113 (0x71): Indirect Data Register 7 ........................................................................................................74
Register 114 (0x72): Indirect Data Register 6 ........................................................................................................74
Register 115 (0x73): Indirect Data Register 5 ........................................................................................................74
Register 116 (0x74): Indirect Data Register 4 ........................................................................................................74
Register 117 (0x75): Indirect Data Register 3 ........................................................................................................74
Register 118 (0x76): Indirect Data Register 2 ........................................................................................................74
Register 119 (0x77): Indirect Data Register 1 ........................................................................................................74
Register 120 (0x78): Indirect Data Register 0 ........................................................................................................74
Register 124 (0x7C): Interrupt Status Register ......................................................................................................75
Register 125 (0x7D): Interrupt Mask Register ........................................................................................................75
Register 128 (0x80): Global Control 12 ..................................................................................................................76
Register 129 (0x81): Global Control 13 ..................................................................................................................76
Register 130 (0x82): Global Control 14 ..................................................................................................................76
www.DataRSheegeist4tUer.c1o3m1 (0x83): Global Control 15 ..................................................................................................................77
Register 132 (0x84): Global Control 16 ..................................................................................................................77
Register 133(0x85): Global Control 17 ...................................................................................................................77
Register 134 (0x86): Global Control 18 ..................................................................................................................77
January 2011
7 M9999-012011-1.2

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