Cirrus Logic CS8952 - Manual

Copyright  Cirrus Logic, Inc. 1998
(All Rights Reserved)
CDB8952
Advanced Product Databook
Crystal LAN™ 10Base-T
and 100Base-X Transceiver
Evaluation Board
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, Collision,
Full/Half Duplex, Transmit Activity, Receive
Activity, 100 Mb/s Speed, and 10 Mb/s Speed.
! Hardware configurable through jumper settings,
or software configurable through the MII interface.
! Operates from single 5 V supply, or may be
optionally configured for interface to 3.3 V MII.
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.
ORDERING INFORMATION
CS8952-CQ 0° to +70° C 100-pin TQFP
CDB8952 Evaluation Board
TEST RESET
J1
HDR3
5
HDR1
C2
6
HDR42
S3
U4
C2
8
C27
HDR3
4
TP2
U2
Y1
C46
C4
T1
S2 S1
J2
HDR4
TXCLK
TS
T1
MIIDRV
MII_PWR +5V
J5
J6
C1 C3
L1
L2
TP1
HDR1
5
HDR5
HDR6
HDR7
HDR4
3
POWER
LE
D
8
LED6
LED7
LED1
LED2
LED3
LED4
LED5
FDX LNK RX TX SPD1
0
0
SPD1
0 PHYAD4
PHYAD3
PHYAD2
PHYAD1
PHYAD0
TP
4
AN0
AN1
TXS0
TXS1
TCM
U6
CS8952 Shielded
RJ45
HFBR-5103
Fiber
Transceiver
MI
I
Isolation
Transformer
COL
CDB8952 REV. B EVALUATION BOARD
DS206DB2 OCT ‘01
CIRRUS LOGIC ADVANCED PRODUCT DATABOOK