Features - Motorola MC92603 Reference Manual

Features

The MC92603 features transmit FIFOs and source synchronous transmit clocks per channel
to further simplify interfacing. Additionally, IEEE Std 1149.1—1990™ JTAG boundary
scan and built-in PRBS generator/analyzers are provided for board test support.
1.2 Features
The MC92603 has two applications-oriented operating modes depending on the
configuration. It may be used as a backplane SerDes or an Ethernet PHY.
The main features of the MC92603 are as follows:
• Common features:
— Four independent SerDes channels with full-duplex differential data links
— Configurable as a dual channel device to provide redundant transmit and receive
serial links
— Selectable speed range: 1.25 or 0.625 Gbaud
— Internal 8B/10B encoder/decoder that may be bypassed
— Source synchronous parallel data input interfaces
— Selectable: source-aligned or source-centered timing on the receiver output
interfaces
— DDR (RGMII/RTBI), source synchronous, 4-/5-bit optional interfaces
— Parallel interfaces may be either 2.5- or 3.3-V LVTTL. Device will inter-operate
with SSTL_2 with the 2.5-V LVTTL interface.
— Transmit data clock is selectable between per-channel transmit clock or channel
'A' transmit clock
— Received data may be clocked to the reference clock or to the received data
frequencies
— Unused transceiver channel may be disabled
— Drives 50- or 75-Ω media (100- or 150-Ω differential) for lengths of up to
1.5 meters board/backplane, or 10 meters of coax.
— Tolerates a +250 ppm frequency offset between the transmitter and receiver
— Link inputs have on-chip receiver termination and are 'hot swap' compatible
— Low power (less than 1.0 W) under typical conditions while operating in
backplane mode with all transceivers at full speed
— Differential LVPECL reference clock input with single-ended LVCMOS input
option
— Two single-ended buffered reference clock outputs to be used as the clock source
for associated MAC interface logic.
— Built-in, at speed, self test for production testing and on-board diagnostics
— IEEE Std. 1149.1 JTAG boundary scan test support
1-2
MC92603 Quad Gigabit Ethernet Transceiver Reference Manual
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