Maxim DS33R11 specifications 12.4 E1 Mode, FRAME# Rfsync Rsync

DS33R11 Ethernet Mapper with Integrated T1/E1/J1 Transceiver

12.4E1 Mode

Figure 12-20. Receive-Side Timing

FRAME#

RFSYNC

RSYNC 1

RSYNC 2

1

2

3

4

5

6

7

8

9 10

11 12 13 14 15

16

1

NOTE 1: RSYNC IN FRAME MODE (TR.IOCR1.5 = 0).

NOTE 2: RSYNC IN MULTIFRAME MODE (TR.IOCR1.5 = 1).

NOTE 3: THIS DIAGRAM ASSUMES THE CAS MF BEGINS IN THE RAF FRAME.

Figure 12-21. Receive-Side Boundary Timing (with Elastic Store Disabled)

RCLKO

	CHANNEL 32	CHANNEL 1	CHANNEL 2
RSERO	LSB Si 1	A Sa4 Sa5 Sa6 Sa7 Sa8 MSB
RSYNC
RFSYNC
	CHANNEL 32	CHANNEL 1	CHANNEL 2
RSIG	A B C D	Note 4	A B

RCHCLK

RCHBLK1

NOTE 1: RCHBLK IS PROGRAMMED TO BLOCK CHANNEL 1.

NOTE 2: SHOWN IS A RNAF FRAME BOUNDARY.

NOTE 3: RSIG NORMALLY CONTAINS THE CAS MULTIFRAME ALIGNMENT NIBBLE (0000) IN CHANNEL 1.

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