zl50021 Zarlink Semiconductor, zl50021 Datasheet - Page 31

• Manufacturer Part Number: zl50021
• Description: Enhanced 4 K Digital Switch With Stratum 3 Dpll
• Manufacturer: Zarlink Semiconductor

The input delay is controlled by STIN[n]BD2-0 (bits 8 - 6) to control the bit shift and STIN[n]SMP1 - 0 (bits 5 - 4) to
control the sampling point in the Stream Input Control Register 0 - 31 (SICR0 - 31).
STi[n]
The first 3 bits represent STIN[n]BD2 - 0 for setting the bit delay.
The second set of 2 bits represent STIN[n]SMP1 - 0 for setting the sampling point offset.
NOTE: Italic settings can be used in 16Mbps mode (1/2 and 4/4 sampling point).
Example: With a setting of 011 10 the offset will be 3 bits at a 1/2 sampling point.
000 01
000 10
000 00 (Default)
000 11
001 01
001 10
001 00
001 11
010 01
010 10
010 00
010 11
011 01
011 10
011 00
011 11
0
Nominal Channel n Boundary
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Figure 15 - Input Bit Delay and Factional Sampling Point
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Zarlink Semiconductor Inc.
ZL50021
4
31
3
Nominal Channel n+1 Boundary
2
1
0
Data Sheet
111 11
111 00
111 10
111 01
110 11
110 00
110 10
110 01
101 11
101 00
101 10
101 01
100 11
100 00
100 10
100 01
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