Integrated Device Technology, Inc.
Document Type: Data Sheet
ICS1893CY-10
Document Stage: Preliminary Release
3.3-V 10Base-T/100Base-TX Integrated PHYceiver™
General
Features
The ICS1893CY-10 is a low-power, physical-layer device
(PHY) that supports the ISO/IEC 10Base-T and 100Base-TX
Carrier-Sense Multiple Access/Collision Detection
(CSMA/CD) Ethernet standards. The ICS1893CY-10
supports managed or unmanaged node, repeater, and
switch applications.
• Supports category 5 cables with attenuation in excess of
24 dB at 100 MHz
• Fully integrated, DSP-based PMD includes:
– Adaptive equalization and baseline wander correction
– Transmit wave shaping and stream cipher scrambler
– MLT-3 encoder and NRZ/NRZI encoder
• Low-power, 0.35-micron CMOS (typically 400 mW)
• Power-down mode typically 21mW
• Single 3.3-V power supply.
The ICS1893CY-10 is intended for MII, Node applications
that require the Auto-MIDIX feature that automatically
corrects crossover errors in plant wiring.
• Single-chip, fully integrated PHY provides PCS, PMA,
PMD, and AUTONEG sublayers of IEEE standard
The ICS1893CY-10 incorporates digital signal processing
(DSP) in its Physical Medium Dependent (PMD) sublayer.
As a result, it can transmit and receive data on unshielded
twisted-pair (UTP) category 5 cables with attenuation in
excess of 24 dB at 100 MHz. With this ICS-patented
technology, the ICS1893CY-10 can virtually eliminate errors
from killer packets.
• 10Base-T and 100Base-TX IEEE 802.3 compliant
• Highly configurable design supports:
– Node, repeater, and switch applications
– Managed and unmanaged applications
– 10M or 100M half- and full-duplex modes
– Parallel detection
– Auto-negotiation, with Next Page capabilities
– Auto-MDI/MDIX crossover correction
The ICS1893CY-10 provides a Serial Management Interface
for exchanging command and status information with a
Station Management (STA) entity.
• MAC/Repeater Interface can be configured as:
– 10M or 100M Media Independent Interface
– 100M Symbol Interface (bypasses the PCS)
– 10M 7-wire Serial Interface
The ICS1893CY-10 Media Dependent Interface (MDI) can
be configured to provide either half- or full-duplex operation
at data rates of 10 MHz or 100 MHz. The MDI configuration
can be established manually (with input pins or control
register settings) or automatically (using the
Auto-Negotiation features). When the ICS1893CY-10
Auto-Negotiation sublayer is enabled, it exchanges
technology capability data with its remote link partner and
automatically selects the highest-performance operating
mode they have in common.
• Clock and crystal supported
• Small Footprint 64-pin Thin Quad Flat Pack (TQFP)
• Available in Industrial Temperature and Lead-Free
ICS1893CY-10 Block Diagram
100Base-T
PCS
•
•
Frame
CRS/COL
Detection
10/100 MII or
Alternate
MAC/Repeater
Interface
Twisted-
Pair
Interface to
Magnetics
Modules and
RJ45
Interface
MUX
Integrated
Switch
•
•
Parallel to Serial
4B/5B
10Base-T
Connector
MII
Low-Jitter
Clock
Synthesizer
Auto-
Negotiation
Configuration
and Status
Extended
Register
Set
MII Serial
Management
Interface
Clock
Power
LEDs and PHY
Address
IDT reserves the right to make changes in the device data identified in
this publication without further notice. IDT advises its customers to
obtain the latest version of all device data to verify that any information
being relied upon by the customer is current and accurate.
ICS1893CY-10
Rev 1/07
ICSI [ INTEGRATED CIRCUIT SOLUTION INC ]
