Maxim DS33R11 Switch User Manual


 
DS33R11 Ethernet Mapper with Integrated T1/E1/J1 Transceiver
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Figure 12-14. Receive-Side 2.048MHz Boundary Timing (Elastic Store Enabled)
RSER O
CHANNEL 1
RCHCLK
RCHBLK
RSYSCLK
RSYNC
CHANNEL 31 CHANNEL 32
1
3
4
RSYNC
2
RMSYNC
RSIG
CHANNEL 31
CHANNEL 32
BA
C/A
D/B
C/A
D/B
AB
CHANNEL 1
LSB MSB
LSB
F
5
NOTE 1: RSERO DATA IN CHANNELS 1, 5, 9, 13, 17, 21, 25, AND 29 ARE FORCED TO 1.
NOTE 2: RSYNC IS IN THE OUTPUT MODE (TR.IOCR1.4 = 0).
NOTE 3: RSYNC IS IN THE INPUT MODE (TR.IOCR1.4 = 1).
NOTE 4: RCHBLK IS FORCED TO 1 IN THE SAME CHANNELS AS RSERO (SEE NOTE 1).
NOTE 5: THE F-BIT POSITION IS PASSED THROUGH THE RECEIVE-SIDE ELASTIC STORE.
Figure 12-15. Transmit-Side D4 Timing
12345678910111212345
1
2
3
TSSYNC
FRAME#
TSYNC
TSYNC
TSYNC
NOTE 1: TSYNC IN THE FRAME MODE (TR.IOCR1.2 = 0) AND DOUBLE-WIDE FRAME SYNC IS NOT ENABLED (TR.IOCR1.1 = 0).
NOTE 2: TSYNC IN THE FRAME MODE (TR.IOCR1.2 = 0) AND DOUBLE-WIDE FRAME SYNC IS ENABLED (TR.IOCR1.1 = 1).
NOTE 3: TSYNC IN THE MULTIFRAME MODE (TR.IOCR1.2 = 1).