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Rainbow Electronics DS2143Q User Manual

Page 29

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DS2143/DS2143Q

031397 29/40

TRANSMIT SIDE TIMING

15 16

1

2

3

4

5

6

7

8

9

10 11 12

13 14 15

FRAME#

16

1

2

3

4

5

6

14

TSYNC

1

TSYNC

2

TCLK

3

TLINK

3

NOTES:

1. TSYNC in the frame mode (TCR1.1=0).

2. TSYNC in the multiframe mode (TCR1.1=1).

3. TLINK is programmed to source only the Sa4 bit.

4. This diagram assumbes both the CAS MF and the CRC4 begin with the align frame.

LINE INTERFACE CONTROL TIMING

LI_CS

LI_SCLK

LI_SDI

1

LI_SDI

2

0

0

0

0

0

0

0

CR0 CR1 CR2 CR3 CR4 CR5 CR6 CR7

CR0 CR1 CR2 CR3 CR4 CR5 CR6 CR7

0

0

0

0

0

1

1

0

1

244 ns

244 ns

244 ns

NOTES:

1. A write to CRB1 will cause the DS2143 to output this sequence.

2. A write to CRB2 will cause the DS2143 to output this sequence.

3. Timing numbers are based on RCLK=2.048 MHz with 50% duty cycle.