CDB8952T Cirrus Logic Inc, CDB8952T Datasheet

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CDB8952T

Manufacturer Part Number
CDB8952T
Description
BOARD EVAL FOR CS8952
Manufacturer
Cirrus Logic Inc
Series
CrystalLAN™r
Type
Ethernetr
Datasheet
1.CDB8952T.pdf (12 pages)

Specifications of CDB8952T

Contents
Evaluation Board and CD-ROM
Product
Audio Modules
Lead Free Status / RoHS Status
Contains lead / RoHS non-compliant
For Use With/related Products
CS8952
Lead Free Status / Rohs Status
Lead free / RoHS Compliant
Other names
598-1162
FEATURES
! IEEE 802.3 compliant 10Base-T and 100Base-X
! Media Supported:
! IEEE 802.3u MII Interface with extended register
! LED indicators for Power, Link Status, Collision,
! Hardware configurable through jumper settings,
! Operates from single 5 V supply, or may be
ORDERING INFORMATION
DS206DB2
Physical Interface.
— 10Base-T
— 100Base-TX
— 100Base-FX (with optional fiber transceiver installed)
support.
Full/Half Duplex, Transmit Activity, Receive
Activity, 100 Mb/s Speed, and 10 Mb/s Speed.
or software configurable through the MII interface.
optionally configured for interface to 3.3 V MII.
CS8952-CQ 0° to +70° C
CDB8952
TEST
S2
PHYAD4
PHYAD3
PHYAD2
PHYAD1
PHYAD0
RESET
S1
S3
J1
MIIDRV
HDR1
C27
TXCLK
HDR4
HDR42
AN0
CIRRUS LOGIC ADVANCED PRODUCT DATABOOK
HDR5
AN1
100-pin TQFP
Evaluation Board
U4
TXS0
HDR6
TP2
TXS1
HDR7
TCM
Copyright  Cirrus Logic, Inc. 1998
CS8952
CDB8952 REV. B EVALUATION BOARD
LED6
(All Rights Reserved)
LED7
MII_PWR
C1
LED1
TX
U2
J5
DESCRIPTION
The CDB8952 Evaluation Board provides a platform for
evaluating the CS8952 10Base-T and 100Base-X
Transceiver. It is designed to plug into a transceiver test
box via a standard 40-pin MII connector. System de-
signers can use the CDB8952 to fully exercise the
CS8952 without the time and expense of custom
prototyping.
Though the CBD8952 is configured from the factory for
5 V operation with the power supplied from the test box,
it may also be configured for 3.3 V MII systems.
The CDB8952 may be optionally configured with a fiber
interface module for 100Base-FX testing.
TP1
LED2
RX
Y1
+5V
J6
and 100Base-X Transceiver
C3
LED3
LNK
C4
Crystal LAN™ 10Base-T
POWER
T1
FDX
LED4
Transformer
Evaluation Board
L2
L1
LED5
COL
Isolation
Advanced Product Databook
U6
C46
HFBR-5103
Transceiver
Fiber
CDB8952
Shielded
RJ45
OCT ‘01

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CDB8952T Summary of contents

Page 1

FEATURES ! IEEE 802.3 compliant 10Base-T and 100Base-X Physical Interface. ! Media Supported: — 10Base-T — 100Base-TX — 100Base-FX (with optional fiber transceiver installed) ! IEEE 802.3u MII Interface with extended register support. ! LED indicators for Power, Link Status, ...

Page 2

INTRODUCTION This manual provides information specifically on the CDB8952 Evaluation board and generally on any design incorporating the CS8952 Crystal- TM LAN 10Base-T and 100Base-X Transceiver. The reader should have a general knowledge of hardware design and Ethernet operation. Background ...

Page 3

CDB8952 Crystal LAN™ 10Base-T and 100Base-X Transceiver NOTE: Physical address 00000 is a special broadcast address. All devices will respond to this address in addition to the one selected using S3. Setting S3 to 00000 will cause the CS8952 to ...

Page 4

Pins Function 1-2 Low Power Start The CS8952 will enter a low power mode following reset. Only the circuitry necessary to maintain media impedance and the MII Serial Management Interface will be operational. The CS8952 checks the status of these ...

Page 5

CDB8952 Crystal LAN™ 10Base-T and 100Base-X Transceiver 3.3V Power Supply Option Outlined below are several different way to supply power to the CDB8952 evaluation board Supplied Through the MII Connector - When the CDB8952 is connected to a ...

Page 6

The X-1000 state machine is dependent on TX_CLK resulting in a mutually exclusive condi- tion. It will not de-assert TX_EN without TX_CLK present. This behavior has only been seen on Net- com X-1000 test hardware. Work-around: Power on the X-1000 ...

Page 7

CDB8952 Crystal LAN™ 10Base-T and 100Base-X Transceiver SCHEMATICS CIRRUS LOGIC ADVANCED PRODUCT DATABOOK DS206DB2 7 ...

Page 8

CIRRUS LOGIC ADVANCED PRODUCT DATABOOK 8 Crystal LAN™ 10Base-T and 100Base-X Transceiver CDB8952 DS206DB2 ...

Page 9

CDB8952 Crystal LAN™ 10Base-T and 100Base-X Transceiver CIRRUS LOGIC ADVANCED PRODUCT DATABOOK DS206DB2 9 ...

Page 10

CIRRUS LOGIC ADVANCED PRODUCT DATABOOK 10 Crystal LAN™ 10Base-T and 100Base-X Transceiver CDB8952 DS206DB2 ...

Page 11

CDB8952 Crystal LAN™ 10Base-T and 100Base-X Transceiver CDB8952 BILL OF MATERIALS Ref. Des. C1, C3, C4, C26 Cap, Tant, 10uF, 20V, 20%, 6032 C2, C5-C17, C19-C25, C37, Cap, X7R, 0.1uF, 50V, 10%, 0805 C38, C44 C27, C28 Cap, Tant, 1uF, ...

Page 12

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