XRT7250 Datasheet, PDF (45/463 Pages) Exar Corporation – DS3/E3 FRAMER IC

XRT7250 DS3/E3 FRAMER IC
REV. 1.1.1
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FIGURE 3. TIMING DIAGRAM FOR THE TRANSMIT PAYLOAD DATA INPUT INTERFACE, WHEN THE XRT7250 DEVICE IS
OPERATING IN BOTH THE DS3/NIBBLE AND LOOPED-TIMING MODES
RxOutClk
TxNibClk
TxNib[3:0]
TxNibFrame
t13A
t13
Nibble [1175]
Nibble [0]
FIGURE 4. TIMING DIAGRAM FOR THE TRANSMIT PAYLOAD DATA INPUT INTERFACE, WHEN THE XRT7250 DEVICE IS
OPERATING IN THE DS3/NIBBLE AND LOCAL-TIMING MODES
TxInClk
TxNibClk
TxNib[3:0]
TxNibFrame
t18
TxFrameRef
t14
t15
Nibble [1175]
Nibble [0]
t16
t17
DS3 Frame Number N ^{DS3 Frame Number N + 1}
Sampling Edge of the XRT7250 Device
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