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SPRS821D –MARCH 2013–REVISED DECEMBER 2013
8.12.3.2 Step 2: Length Mismatch Guidelines
8.12.3.2.1 CSI2 at 1.0 Gbps
The guidelines of the length mismatch for CSI2 at 1.0 Gbps are presented in Table 8-44. The intralane
length mismatch must be less than 0.5 mm, and the interlane length mismatch must be less than 1.5 mm.
Table 8-44. Length Mismatch Guidelines for CSI2 at 1.0 Gbps
PARAMETER
TYPICAL VALUE
UNIT
Mbps
ps
Operating speed
1000
1000
3
UI (bit time)
Intralane skew (UI / 300)
Length between N and P traces
Interlane skew (UI / 100)
Length between pairs
ps
0.5
10
mm
ps
1.5
mm
8.12.3.2.2 CSI2 at 824 Mbps
The guidelines of the length mismatch for CSI2 at 824 Mbps are presented in Table 8-45. The intralane
length mismatch must be less than 0.6 mm, and the interlane length mismatch must be less than 1.8 mm.
Table 8-45. Length Mismatch Guidelines for CSI2 at 824 Mbps
PARAMETER
TYPICAL VALUE
UNIT
Mbps
ps
Operating speed
824
1213
4
UI (bit time)
Intralane skew (UI / 300)
Length between N and P traces
Interlane skew (UI / 100)
Length between pairs
ps
0.6
12
mm
ps
1.8
mm
8.12.3.2.3 CSI2 at 800 Mbps
The guidelines of the length mismatch for CSI2 at 800 Mbps are presented in Table 8-46. The intralane
length mismatch must be less than 0.6 mm, and the interlane length mismatch must be less than 1.8 mm.
Table 8-46. Length Mismatch Guidelines for CSI2 at 800 Mbps
PARAMETER
TYPICAL VALUE
UNIT
Mbps
ps
Operating speed
800
1250
4
UI (bit time)
Intralane skew (UI / 300)
Length between N and P traces
Interlane skew (UI / 100)
Length between pairs
ps
0.6
12
mm
ps
1.8
mm
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