DS33R11 Ethernet Mapper with Integrated T1/E1/J1 Transceiver

Figure 12-14. Receive-Side 2.048MHz Boundary Timing (Elastic Store Enabled)

RSYSCLK

RSER O1

CHANNEL 31

CHANNEL 32

CHANNEL 1

LSB MSB

LSB

F5

RSYNC2

 

 

 

RMSYNC

 

 

 

RSYNC3

 

 

 

 

CHANNEL 31

CHANNEL 32

CHANNEL 1

RSIG

A B C/A D/B

A B C/A D/B

 

RCHCLK

RCHBLK4

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

FRAME#

TSYNC1

TSSYNC TSYNC2 TSYNC3

1

2

3

4

5

6

7

8

9 10 11 12

1

2

3

4

5

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).

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Maxim DS33R11 specifications Rsysclk Rser O, Rchclk RCHBLK4