ort82g5 Lattice Semiconductor Corp., ort82g5 Datasheet - Page 28

• Manufacturer Part Number: ort82g5
• Description: Xaui And Fc Fpscs
• Manufacturer: Lattice Semiconductor Corp.

Lattice Semiconductor
Figure 12. Four Channel Alignment of SERDES Blocks A and B
ORT82G5 Multi-channel Alignment
The ORT82G5 has a total of eight channels (four per SERDES block). The incoming data of these channels can be
synchronized in several ways or they can be independent of one other. Two channels within a SERDES block can
be aligned together. Channel A and B and/or channel C and D can form a pair as shown in Figure 13. Alternately,
all four channels of a SERDES block can be aligned together to form a communication channel with a bandwidth of
10 Gbps as shown in Figure 14. Finally, the alignment can be extended across both SERDES block to align all
eight channels in ORT82G5 as shown in Figure 15. Individual channels within an alignment group can be disabled
(i.e., powered down) without disrupting other channels.
Figure 13. Dual Channel Alignment
Figure 14. Alignment of SERDES Quads A and B
Channel AC
Channel AA
Channel AD
Channel AB
Channel BA
Channel BD
Channel AC
Channel BB
Channel BD
Channel AD
Channel AA
Channel AD
Channel BC
Channel AC
Channel BC
Channel AB
Channel BB
Channel BA
QUAD ALIGNMENT OF CHANNELS AA
QUAD ALIGNMENT OF CHANNELS BA
Channel BD
QUAD ALIGNMENT OF CHANNELS AC
Channel BC
T
T
TWIN ALIGNMENT OF CHANNELS BA AND BB
TWIN ALIGNMENT OF CHANNELS BC AND BD
WIN ALIGNMENT OF CHANNELS AA AND AB
WIN
A
LIGNMENT OF CHANNELS AC AND AD
28
,
,
,
AB
BB
AD
ORCA ORT42G5 and ORT82G5 Data Sheet
,
,
AC
BC
,
Channel AC
Channel AD
BC
,
,
Channel AB
AND AD
AND BD
,
Channel AA
AND BD
Channel BC
Channel BD
Channel BA
Channel BB
Channel BC
Channel AC
Channel AC
Channel AD
Channel BD
Channel AA
Channel AB
Channel AD
Channel BA
Channel BB
Channel BC
Channel BD
t
3
t
2
t
1
t
t
0
t
0
1
t
0