cn8223 Mindspeed Technologies, cn8223 Datasheet - Page 38
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cn8223
Manufacturer Part Number
cn8223
Description
Atm Transmitter/receiver With Utopia Interface
Manufacturer
Mindspeed Technologies
Datasheet
1.CN8223.pdf
(161 pages)
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2.0 Functional Description
2.2 Line Framers
2.2.1 Internally Framed Transmit Line Interface
Figure 2-3. Internal Framer Transmitter Interface Timing with Line Encoding
2-4
TXPOS
TXNEG
TCLKO
In internal framer mode, the transmitter provides positive and negative pulse
indications and a transmit output clock to an external Line Interface Unit (LIU)
(or output clock and NRZ serial data if internal B3ZS/HDB3 encoding is
disabled) in response to a transmit input clock.
functional timing for the transmit line interface is similar for all internal framer
modes.
encoder is enabled. The TCLKO phase shown can be inverted with Invert TX
Clock Output [bit 7] of the CONFIG_3 register [0x02].
Table 2-2. Internal Framer Transmitter Interface Connections
Transmit Clock Input (TXCKI)
Transmit Clock Output (TCLKO)
Transmit Positive Data (TXPOS)
Transmit Negative Data (TXNEG)
Table 2-2
Figure 2-3
gives the internal framing mode interface connections. The
Signal Name
illustrates the interface timing when the internal B3ZS/HDB3
Conexant
ATM Transmitter/Receiver with UTOPIA Interface
TXCKI
TCLKO
TXOUT[1]
TXOUT[2]
Connect to CN8223 Pin
100046D
CN8223
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