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VSC8658 датащи(PDF) 85 Page - Microsemi Corporation

номер детали VSC8658
подробное описание детали  Octal 10/100/1000BASE-T PHY and 100BASEFX/1000BASE-X SerDes
PDF  95 Pages
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производитель  MICROSEMI [Microsemi Corporation]
домашняя страница  http://www.microsemi.com
Logo MICROSEMI - Microsemi Corporation

VSC8658 датащи(HTML) 85 Page - Microsemi Corporation

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Pin Descriptions
VMDS-10242 VSC8658 Datasheet Revision 4.1
77
7.2.5
Serial Management Interface
The following table lists the device pins associated with the device serial management interface (SMI).
Note that the pins in this table, except for EECLK and EEDAT, are referenced to VDDIO and can be set to
a 1.8 V, 2.5 V, or 3.3 V power supply. The EECLK and EEDAT pins are instead referenced to VDD33.
D1
A5
A9
A13
A17
A21
A25
G26
TXVPD_7
TXVPD_6
TXVPD_5
TXVPD_4
TXVPD_3
TXVPD_2
TXVPD_1
TXVPD_0
ADIFF
TX/RX channel D positive signal
D2
B5
B9
B13
B17
B21
B25
G25
TXVND_7
TXVND_6
TXVND_5
TXVND_4
TXVND_3
TXVND_2
TXVND_1
TXVND_0
ADIFF
TX/RX channel D negative signal
Table 86 •
SMI Pins
Pin
Name
Type
Description
U3
MDC
I
Management data clock. A 0 MHz to 12.5 MHz reference
input is used to clock serial MDIO data into and out of the
PHY.
V3
MDIO
OD
Management data input/output pin. Serial data is written
or read from this pin bidirectionally between the PHY and
Station Manager, synchronously on the positive edge of
MDC. One external pull-up resistor is required at the
Station Manager, and its value depends on the MDC clock
frequency and the total sum of the capacitive loads from
the MDIO pins.
Y4
Y3
Y2
Y1
W4
W3
W2
W1
MDINT_7
MDINT_6
MDINT_5
MDINT_4
MDINT_3
MDINT_2
MDINT_1
MDINT_0
OS/OD Management interrupt signal. Upon reset the device will
configure these pins as active-low (open drain) or active-
high (open source) based on the polarity of an external
10 k
Ω resistor connection. These pins can be tied
together in a wired-OR configuration with only a single
pull-up or pull-down resistor.
Table 85 •
Twisted Pair Interface Pins (continued)
Pin
Name
Type
Description



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