device.
space, power and cost. It is
鈥淔ibre Channel 10-bit Interface鈥?/div>
specification.
The transmitter section accepts
10-bit wide parallel TTL data and
multiplexes this data into a high-
speed serial data stream. The
parallel data is expected to be
8B/10B encoded data, or
equivalent. This parallel data is
latched into the input register of
the transmitter section on the
rising edge of the 106.25 MHz
reference clock (used as the
transmit byte clock).
The transmitter section鈥檚 PLL
locks to this user supplied 106.25
MHz byte clock. This clock is
multiplied by 10, to generate the
1062.5 MHz serial signal clock
used to generate the high-speed
output. The high-speed outputs
are capable of interfacing directly
to copper cables for electrical
transmission or to a separate
fiber-optic module for optical
transmission.
The receiver section accepts a
serial electrical data stream at
Applications
鈥?1062.5 MBd Fibre Channel
Interface
鈥?Mass Storage System I/O
Channel
鈥?Work Station/Server I/O
Channel
鈥?High Speed Proprietary
Interface
1062.5 MBd and recovers the
original 10-bit wide parallel data.
The receiver PLL locks onto the
incoming serial signal and
recovers the high-speed serial
clock and data. The serial data is
converted back into 10-bit
parallel data, recognizing the
8B/10B comma character to
establish byte alignment.
The recovered parallel data is
presented to the user at TTL
compatible outputs. The receiver
section also recovers two 53.125
MHz receiver byte clocks that are
180 degrees out of phase with
each other. The parallel data is
aligned with the rising edge of
alternating clocks.
The transceiver provides for on-
chip local loop-back functionality,
controlled through an external
input pin. Additionally, the byte
synchronization feature may be
disabled. This may be useful in
proprietary applications that use
alternative methods to align the
parallel data.
5964-6897E (5/96)
Description
The HDMP-1526 transceiver is a
single silicon bipolar integrated
circuit packaged in an EDQuad
package. It provides a low-cost,
low-power physical layer solution
for 1062.5 MBd Fibre Channel or
proprietary link interfaces. It
provides complete FC-0 func-
tionality for copper transmission,
incorporating both the Fibre
Channel FC-0 transmit and
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