Instrukcja obsługi Microchip VSC8244

Microchip Niesklasyfikowane VSC8244

Przeczytaj poniżej 📖 instrukcję obsługi w języku polskim dla Microchip VSC8244 (121 stron) w kategorii Niesklasyfikowane. Ta instrukcja była pomocna dla 6 osób i została oceniona przez 2 użytkowników na średnio 4.5 gwiazdek

Pobierz PDF

Strona 1/121

VSC8244

Data Sheet

Quad 10/100/1000BASE-T PHY with RGMII and RTBI Interfaces

VMDS-10108 Revision 4.2

February 2019

Microsemi Corporation One Enterprise, Aliso Viejo, CA 92656 USA

sales.support@microsemi.com www.microsemi.com

1 of 3

1 General Description

Ideally suited for high port density Gigabit Ethernet switches

and routers, or multi-port Network Interface Cards (NICs),

Microsemi's VSC8244 integrates four low-power, triple speed

(10BASE-T, 100BASE-TX, and 1000BASE-T) Ethernet

transceivers in thermally-enhanced, 260-pin plastic Ball Grid

Array (BGA).

The VSC8244 physical layer "PHY" IC leverages Microsemi’s

proprietary 4th generation DSP Technology. Microsemi's

highly optimized DSP architecture yields industry leading

performance at less than 640mW per port, supporting

1000BASE-T with respect to all worst case impairments

(NEXT, FEXT, Echo, and system noise sources).

Each of the four independent triple-speed transceivers

features pin-efficient RGMII and RTBI compliant MAC

interfaces. On-chip RGMII/RTBI series termination resistors

simplify board design challenges by improving signal integrity

and completely eliminating dozens of external series

termination resistors on the receive side of the MAC

interface. In addition, the VSC8244 integrates, for the first

time in the industry, all copper media side line termination

resistors.

The VeriPHY® suite has the ability to identify the cable length

and operating conditions and to isolate common faults that

can occur on Cat5 twisted pair cabling.

2 System Diagrams

Figure 1. VSC8244 System Diagram

Management

I/F

1.2 v

MDC, MDIO

MDINT#_n

Serial

I/F

VSC8244

Quad 10/100/1000BASE-T

Transceiver

3.3 v

Optional

EEPROM

RGMII, RTBI

10/100/1000 Mbps

Ethernet MAC

10/100/1000 Mbps

Ethernet MAC

10/100/1000 Mbps

Ethernet MAC

10/100/1000 Mbps

Ethernet MAC

RJ-45

SimpliPHY d

Magnetics

RJ-45

SimpliPHY d

Magnetics

RJ-45

SimpliPHY d

Magnetics

RJ-45

SimpliPHY d

Magnetics

VSC8244

Data Sheet

VMDS-10108 Revision 4.2

February 2019

2 of 3

4 Applications

3 Features Benefits

• Quad, low power, 10/100/1000BASE-T in a

19mm HS-BGA package

• Catalyzes market for low-cost & high density LAN, WAN,

SAN, & MAN switches

• Lowest power consumption in the industry at less than

640mW/port (1000BASE-T mode)

• Eliminates heatsinks and fans for Gigabit to the desktop

LAN switches

• Supports PICMG 2.16 and 3.0 Ethernet backplanes at

less than 500 mW/port

• Lowest power mode reduces supply costs

• Patented, low EMI line driver with integrated line side

termination resistors

• Removes 12 passive components per PHY*, reducing

PCB area & cost by 50%

• Saves up to 50% on magnetic module cost with

SimpliPHY’d magnetics

• Enables magnetic-less PICMG backplane designs

• Supports RGMII v1.3 (2.5V & 3.3V) & v2.0 (1.5V HSTL) • Compatible with a wide variety of parallel I/F switch ICs

• User-programmable RGMII timing compensation • Simplifies PCB layout; eliminates PCB trombones

• Compliant with IEEE 802.3 (10BASE-T, 100BASE-TX,

1000BASE-T) specifications

• Ensures seamless deployment throughout copper

networks with industry’s highest tolerance to noise and

substandard cable plants

• >10kB jumbo frame support with programmable

synchronization FIFOs

• Provides for maximum jumbo frame sizes in custom

SAN and LAN systems

• Five Direct drive LEDs per port with on-chip filtering or

serial LED interface option

• Eliminates external components and EMI issues

• Three user configuration options: 1) optional serial

EEPROM, 2) hardware configuration pins, or 3) Serial

Management Interface (SMI)

• Offers design engineer a solution to fit any unmanaged

or managed system requirement

• Full suite of BIST, near-end, and far-end loopback

modes

• Simplifies comprehensive in-system test to ensure

highest product quality

• VeriPHY® cable diagnostics • Identifies cable length and operating conditions to

isolate common faults that can occur on Cat5 twisted

pair cabling

• Automatic detection and correction of cable pair swaps,

pair skew and pair polarity, along with HP Auto MDI/

MDI-X crossover function

• Compatible with 1st generation 1000BASE-T PHYs.

• Supports Auto MDI/MDI-X even when Autonegotiation is

disabled

• Manufactured in advanced 0.13µm, 3.3V/1.2V digital

CMOS process

• Most cost effective technology eliminates more

expensive analog process variants

* or, 576 components for a 48-port switch

• High Port Density 10/100/1000BASE-T Switches • Gigabit Ethernet-based SAN, NAS, and MAN Systems

• Workgroup LAN Switches & Routers • High Performance Workstations & Multi-Port Server NICs

• Backplane Applications such as PICMG 2.16, 3.0

VSC8244

Data Sheet

VMDS-10108 Revision 4.2

February 2019

3 of 3

5 Device Block Diagram

Figure 2. VSC8244 Block Diagram1

1n = port number (0, 1, 2, 3)

CONTROL

LED INTERFACE

PCS DECODER

PCS ENCODER

TIMING RECOVERY

DAC HYBRID

VGAADCFFE

PMA (DSP Data Pump)PCS MDI (Analog Front End )

TX FIR

NC1 NC2 NC3 EC

LED[4:0 ]_n

CLK125MAC

REF_FILT

XTAL1/2

REF_REX T

TXD[3:0]_n

TX_CTL_n

TX_CLK_n

RXD[3:0]_n

Port 3

Port 2

Port 1

TRELLIS

DECODER

PAM -5 SYMBOL

MAPPER ,

SCRAMBLER

PAM- 5 SYMBOL DE-

MAPPER ,

DESCRAMBLER

Port 0

RX_CTL_n

RX_CLK_n

RGMII

RTBI

Interface Selection and Autonegotiation

TXVP_A_n

TXVN_ A_n

TXVP_B_n

TXVN_ B_n

TXVP_C_n

TXVN_C_n

TXVP_D_n

TXVN_D_n

SYSTEM

JTAG

TEST

MANAGER

MANAGEMENT

INTERFACE

TDI

TRST

TMS

TCK

TDO

CMODE[7:0]

RESET

EECLK

EEDAT

MDINT_n

MDIO

MDC

SOFT_RESET

CLK125micro

Specyfikacje produktu

Marka:	Microchip
Kategoria:	Niesklasyfikowane
Model:	VSC8244

Potrzebujesz pomocy?

Jeśli potrzebujesz pomocy z Microchip VSC8244, zadaj pytanie poniżej, a inni użytkownicy Ci odpowiedzą

Twoje imię*

Twój email*

Napisz tutaj swoje pytanie

Instrukcje Niesklasyfikowane Microchip

Microchip AT91SAM9M11 Instrukcja

15 Stycznia 2025

Microchip AT91SAM9261 Instrukcja

15 Stycznia 2025

Microchip AT91SAM9CN12 Instrukcja

15 Stycznia 2025

Microchip ATA5749C Instrukcja

15 Stycznia 2025

Microchip ATECC508A Instrukcja

15 Stycznia 2025

Microchip ATECC608C-TNGTLS Instrukcja

15 Stycznia 2025

Microchip ATECC608C-TCSM Instrukcja

15 Stycznia 2025

Microchip ATMXT144UD-SL Instrukcja

15 Stycznia 2025

Microchip ATMXT1296M1 Instrukcja

15 Stycznia 2025

Microchip ATMEGA162 Instrukcja

15 Stycznia 2025

Instrukcje Niesklasyfikowane

Najnowsze instrukcje dla Niesklasyfikowane

GBC ThermaBind T500Pro Instrukcja

15 Stycznia 2025

Da-Lite Parallax 29850 Instrukcja

15 Stycznia 2025

Crivit IAN 290909 Instrukcja

15 Stycznia 2025

Tripp Lite SmartRack SRW12US Instrukcja

15 Stycznia 2025

Powerfix IAN 280221 Instrukcja

15 Stycznia 2025

AGM Rattler TC35-640 Instrukcja

15 Stycznia 2025

AGM Wolf-7 Pro Instrukcja

15 Stycznia 2025

AGM Anaconda TC50-640 Instrukcja

15 Stycznia 2025

AGM Secutor Pro TS50-640 Instrukcja

15 Stycznia 2025

Vogel's RISE A122 Instrukcja

15 Stycznia 2025