am79c875 Advanced Micro Devices, am79c875 Datasheet - Page 48
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am79c875
Manufacturer Part Number
am79c875
Description
Netphy ?lp Low Power Quad 10/100-tx/fx Ethernet Transceiver
Manufacturer
Advanced Micro Devices
Datasheet
1.AM79C875.pdf
(48 pages)
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REVISION SUMMARY
Revision C to D
1. Register 18, added bits 8 and 9 for user checking.
2. Register 19, added bit 6, Transformer ratio selection via software.
3. Register 20, added bits 7:4, Cable length indicators.
4. Register 24, added bit 5, RX_ER counter disable.
5. DC Characteristics: added V
6. MII Management signals: MDC period changed to 40ns (min), MDC pulse high/low changed to 16ns (min)
7. MII Management signals: MDIO delay changed to 20ns (max), MDIO setup time changed to 4ns (min), MDIO
Revision D to E
1. Specified using resistors in the range of 1 K: to 4.7 K: for setting the PHYAD pins. Figure 8 reflects the correct
2. Added bit 10, Flow Control Support, to Register 5.
Revision E to F
1. Added industrial temperature support and new OPN(KI).
2. Minor edits.
Revision F to G
1. Removed CIM_DIS references.
2. Added pull-up resistor requirements for LEDACT_LINK[0] and LEDDPX[2]/DPLX.
3. Changed pull-up resistor values for LEDs to 1–4.7 K:.
4. Maximum input voltage is 5.5 V; operating voltage for 5-V-tolerant pins is 5.0 V.
5. Minor edits.
Revision G to H
1. Final version
2. Corrected pull-up resistor value for LEDACT_LINK[2] to 1k–4.7K:.
3. Updated package drawing - some tolerances modified.
The contents of this document are provided in connection with Advanced Micro Devices, Inc. (“AMD”) products. AMD makes no representations
or warranties with respect to the accuracy or completeness of the contents of this publication and reserves the right to make changes to speci-
fications and product descriptions at any time without notice. No license, whether express, implied, arising by estoppel or otherwise, to any in-
tellectual property rights is granted by this publication. Except as set forth in AMD's Standard Terms and Conditions of Sale, AMD assumes no
liability whatsoever, and disclaims any express or implied warranty, relating to its products including, but not limited to, the implied warranty of
merchantability, fitness for a particular purpose, or infringement of any intellectual property right.
AMD's products are not designed, intended, authorized or warranted for use as components in systems intended for surgical implant into the
body, or in other applications intended to support or sustain life, or in any other application in which the failure of AMD's product could create a
situation where personal injury, death, or severe property or environmental damage may occur. AMD reserves the right to discontinue or make
changes to its products at any time without notice.
Trademarks
Copyright © 2000, 2001, 2002, 2003 Advanced Micro Devices, Inc. All rights reserved.
AMD, the AMD logo, and combinations thereof are trademarks of Advanced Micro Devices, Inc.
NetPHY is a trademark of Advanced Micro Devices, Inc.
Product names used in this publication are for identification purposes only and may be trademarks of their respective companies.
48
hold time changed to 3ns (max)
resistors.
OLL
, new I
IH
, I
IL
and I
Am79C875
OZ
maximum values