Typical Applications
Tx
Rx
The HDMP-1022/1024 chipset
was designed for ease of use and
flexibility. This allows the
CLK
CLK
A) 16/20 BIT SIMPLEX TRANSMISSION
customer to tailor the use of this
product, through the configura-
tion of the link, based on his
specific system requirements and
application needs. Typical
MUX
Tx
Rx
DEMUX
CLK
CLK
applications range from backplane
and bus extension to digital video
transmission.
B) 32/40 BIT SIMPLEX TRANSMISSION
Low latency bus extension of a 16
or 20 bit wide data bus may be
achieved using the standard
duplex configuration (see Figure
1d). In full duplex, the HDMP-
1022/1024 chipset handles all of
the issues of link startup, main-
tenance, and simple error
Tx
Tx
Rx
Rx
CLK
CLK
CLK
CLK
C) 32/40 BIT SIMPLEX TRANSMISSION
WITH HIGH CLOCK RATES
detection.
If the bus width is 32 or 40 bits
wide, the HDMP-1022/1024
chipset is capable of sending the
large data frame as two separate
frame segments, as shown in
Figure 1b. In this mode, called
Double Frame Mode, the FLAG
bit is used by the transmitter and
receiver to indicate the first or
second frame segment
Tx
Rx
Rx
Tx
CLK
CLK
CLK
CLK
D) 16/20 BIT DUPLEX TRANSMISSION
(Figure 19). The HDMP-1022/
1024 chipset in Double Frame
Mode may also be configured in
full duplex to achieve a 32/40 bit
wide bus extension.
Tx
Rx
Rx
CLK
CLK
CLK
For digital video transmission,
simplex links are more common.
The HDMP-1022/1024 chipset
can transmit 16 to 21 bits of
parallel data in standard or
broadcast simplex mode.
Rx
CLK
E) SIMPLEX BROADCAST TRANSMISSION
Additionally, 32 to 40 bit wide
data can be transmitted over a
single line (in Double Frame
Mode) or two parallel lines, as in
Figure 1c.
Figure 1. Various Configurations Using the HDMP-1022/1024.
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