DS33R11 Ethernet Mapper with Integrated T1/E1/J1 Transceiver
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Figure 12-16. Transmit-Side ESF Timing
1
2
3
4
5
6
7
8
9 10 11 12
1
2
3
TSSYNC
FRAME#
TSYNC
TSYNC
TSYNC
13 14 15 16 17 18 19 20 21 22 23 24 1
2
3
4
5
NOTE 1: TSYNC IN FRAME MODE (TR.IOCR1.2 = 0) AND DOUBLE-WIDE FRAME SYNC IS NOT ENABLED (TR.IOCR1.3 = 0).
NOTE 2: TSYNC IN FRAME MODE (TR.IOCR1.2 = 0) AND DOUBLE-WIDE FRAME SYNC IS ENABLED (TR.IOCR1.3 = 1).
NOTE 3: TSYNC IN MULTIFRAME MODE (TR.IOCR1.2 = 1).
Figure 12-17. Transmit-Side Boundary Timing (with Elastic Store Disabled)
LSB
F
MSB
LSB MSB
LSB MSB
CHANNEL 1
CHANNEL 2
CHANNEL 1
CHANNEL 2
A
B
C/A
D/B
A
B
C/A
D/B
TCLKT
TSERI
TSYNC
TSYNC
TSIG
TCHCLK
TCHBLK
D/B
1
2
3
NOTE 1: TSYNC IS IN THE OUTPUT MODE (TR.IOCR1.1 = 1).
NOTE 2: TSYNC IS IN THE INPUT MODE (TR.IOCR1.1 = 0).
NOTE 3: TCHBLK IS PROGRAMMED TO BLOCK CHANNEL 2.