HBLXT9785HC.A4 Intel, HBLXT9785HC.A4 Datasheet - Page 109
HBLXT9785HC.A4
Manufacturer Part Number
HBLXT9785HC.A4
Description
Manufacturer
Intel
Datasheet
1.HBLXT9785HC.A4.pdf
(234 pages)
Specifications of HBLXT9785HC.A4
Lead Free Status / RoHS Status
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Datasheet
Document Number: 249241
Revision Number: 010
Revision Date: 30-May-2006
Table 39. Intel
1. Type Column Coding: I = Input, O = Output, OD = Open Drain output, ST = Schmitt Triggered input, TS =
Three-State-able output, SL = Slew-rate Limited output, IP = weak Internal Pull-up, ID = weak Internal pull-
Down.
RxData0_SS
RxData1_SS
RxData2_SS
RxData3_SS
RxData4_SS
RxData5_SS
RxData6_SS
RxData7_SS
RxData0_S
RxData1_S
RxData2_S
RxData3_S
RxData4_S
RxData5_S
RxData6_S
RxData7_S
®
MDINT_L
TxSYNC
RxSYNC
Symbol
RxCLK
TxCLK
LXT9785 BGA15 Signal Descriptions (Sheet 2 of 7)
MDIO
LXT9785 and LXT9785E Advanced 8-Port 10/100 Mbps PHY Transceivers
Designation
BGA15 Ball
M2,
M3,
M1,
N3,
K2,
H3,
F2,
E3,
B4,
H2,
F3,
C2,
A4,
G1
J2,
C5
K1
E1
C6
N5
P5
J3
MDIO Control Interface Signal Descriptions
SS-SMII Specific Signal Descriptions
OD, TS,
I/O, TS,
O, TS,
O, TS,
O, TS,
SL, IP
O, TS
Type
I, ID
I, ID
SL,
ID
ID
ID
IP
Signal Description
Receive Data - Ports 0-7.
These serial output streams provide data received from the
network. The LXT9785/9785E drives the data out
synchronously to REFCLK.
SS-SMII Transmit Synchronization.
The MAC must generate a TxSYNC pulse every 10 TxCLK
cycles to mark the start of TxData segments.
SS-SMII Receive Synchronization.
The LXT9785/9785E generates these pulses every 10
RxCLK cycles to mark the start of RxData segments for the
MAC.
SS-SMII Transmit Clock.
The MAC sources this 125 MHz clock as the timing
reference for TxData and TxSYNC.
Requirements” on page 124
SS-SMII Receive Clock.
The LXT9785/9785E generates these clocks, based on
REFCLK, to provide a timing reference for RxData and
RxSYNC to the MAC.
page 124
only enabled when SS-SMII mode is enabled.
Receive Data - Ports 0-7.
These serial output streams provide data received from the
network. The LXT9785/9785E drives the data out
synchronously to REFCLK.
Management Data Input/Output.
Bidirectional serial data channel for communication
between the PHY and MAC or switch ASIC. Refer to
Figure 21 on page
Management Data Interrupt.
When Register bit 18.1 = 1, an active Low output on this
Pin indicates status change. Refer to
for detailed clock
139.
See “Clock/SYNC Requirements” on
for detailed clock requirements.
requirements.
See “Clock/SYNC
Figure 21 on page
These outputs are
139.
109
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