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KSZ8775CLX 데이터시트 PDF




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부품번호 KSZ8775CLX 기능
기능 Integrated 5-Port 10/100 Managed Ethernet Switch
제조업체 Microchip
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KSZ8775CLX 데이터시트, 핀배열, 회로
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.




KSZ8775CLX pdf, 반도체, 판매, 대치품
KSZ8775CLX
Table of Contents
1.0 Introduction ..................................................................................................................................................................................... 5
2.0 Pin Description and Configuration ................................................................................................................................................... 6
3.0 Functional Description ................................................................................................................................................................... 16
4.0 Register Descriptions .................................................................................................................................................................... 49
5.0 Operational Characteristics ......................................................................................................................................................... 114
6.0 Electrical Characteristics ............................................................................................................................................................. 115
7.0 Package Outline .......................................................................................................................................................................... 117
Appendix A: Data Sheet Revision History ......................................................................................................................................... 126
The Microchip Web Site .................................................................................................................................................................... 128
Customer Change Notification Service ............................................................................................................................................. 129
Customer Support ............................................................................................................................................................................. 129
Product Identification System ............................................................................................................................................................ 130
DS00002129C-page 4
2015 Microchip Technology Inc.

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KSZ8775CLX 전자부품, 판매, 대치품
TABLE 2-1:
Num Pins
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
SIGNALS (CONTINUED)
Pin Name
RXP1
RXM1
TXP1
TXM1
RXP2
RXM2
TXP2
TXM2
VDDAT
RXP3
RXM3
TXP3
TXM3
NC
NC
GNDA
Type
I
I
O
O
I
I
O
O
P
I
I
O
O
NC
NC
GND
22 INTR_N
OPU
23 NC
24 TXD4_1
NC
IPD
25 LED3_1
IPU/O
26 TXD4_0
27 LED3_0
28 VDD12D
29 GNDD
IPD
IPU/O
P
GND
KSZ8775CLX
Port
1
1
1
1
2
2
2
2
3
3
3
3
4
3
4
3
Pin Description
Port 1 physical receive signal + (differential).
Port 1 physical receive signal - (differential).
Port 1 physical transmit signal + (differential).
Port 1 physical transmit signal - (differential).
Port 2 physical receive signal + (differential).
Port 2 physical receive signal - (differential).
Port 2 physical transmit signal + (differential)
Port 2 physical transmit signal - (differential).
3.3V or 2.5V analog power
Port 3 physical receive signal + (differential).
Port 3 physical receive signal - (differential).
Port 3 physical transmit signal + (differential).
Port 3 physical transmit signal – (differential).
No connect
No connect
Analog ground
Interrupt. Active low.
This pin is an open-drain output pin.
Note: an external pull-up resistor is needed on
this pin when it is in use.
No connect
RMII: Port 4 RMII transmit bit [1].
Port 3 LED Indicator 1.
See global Register 11 bits [5:4] for details.
Strap option: Switch Port 5 GMAC5 interface
mode select by
LED3[1:0]
00 = MII for SW5-MII
01 = RMII for SW5-RMII
10 = Reserved
11 = RGMII for SW5-RGMII (default)
RMII: Port 4 RMII transmit bit [0]
Port 3 LED Indicator 0.
See global Register 11 bits [5:4] for details.
Strap option: see LED3_1
1.2V core power.
Digital ground.
2015 Microchip Technology Inc.
DS00002129C-page 7

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부품번호상세설명 및 기능제조사
KSZ8775CLX

Integrated 5-Port 10/100 Managed Ethernet Switch

Microchip
Microchip

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