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Lattice Semiconductor
ORCA ORT8850 Data Sheet
47
FPGA/Embedded Core Interface Signals
0x30021
0x01
Channel AA in transparent mode
0x30039
0x01
Channel AB in transparent mode
0x30051
0x01
Channel AC in transparent mode
0x30069
0x01
Channel AD in transparent mode
0x30081
0x01
Channel BA in transparent mode
0x30099
0x01
Channel BB in transparent mode
0x300B1
0x01
Channel BC in transparent mode
0x300C8
0x01
Channel BD in transparent mode
0x30023
0x30
Channel AA - Do not insert A1/A2 or B1
0x3003B
0x30
Channel AB - Do not insert A1/A2 or B1
0x30053
0x30
Channel AC - Do not insert A1/A2 or B1
0x3006B
0x30
Channel AD - Do not insert A1/A2 or B1
0x30083
0x30
Channel BA - Do not insert A1/A2 or B1
0x3009B
0x30
Channel BB - Do not insert A1/A2 or B1
0x300B3
0x30
Channel BC - Do not insert A1/A2 or B1
0x300CB
0x30
Channel BD - Do not insert A1/A2 or B1
0x30037
0x44
Channel AA - Bypass Alignment FIFO and Pointer interpreter/mover, disable
SONET framer
0x3004F
0x44
Channel AB - Bypass Alignment FIFO and Pointer interpreter/mover, disable
SONET framer
0x30067
0x44
Channel AC - Bypass Alignment FIFO and Pointer interpreter/mover, disable
SONET framer
0x3007F
0x44
Channel AD - Bypass Alignment FIFO and Pointer interpreter/mover, disable
SONET framer
0x30097
0x44
Channel BA - Bypass Alignment FIFO and Pointer interpreter/mover, disable
SONET framer
0x300AF
0x44
Channel BB - Bypass Alignment FIFO and Pointer interpreter/mover, disable
SONET framer
0x300C7
0x44
Channel BC - Bypass Alignment FIFO and Pointer interpreter/mover, disable
SONET framer
0x300DF
0x44
Channel BD - Bypass Alignment FIFO and Pointer interpreter/mover, disable
SONET framer
Note: To select between full, half and quad rate modes, registers 0x300E1 and 0x300E2 are used. See the memory map for details on these
registers.
Table 15. FPGA/Embedded Core Interface Signals
ORT8850 FPGA/Embedded Core Interface Signals - SONET Blocks
FPGA/Embedded Core
Interface Signal Name
xx=[AA,…,BD]
Input (I) to or Output (O)
from Core
Signal Description
Common Interface Signals
FPGA_SYSCLK
O
Local reference clock from the core to the FPGA. All of the transmit
data is captured on this clock edge inside the ORT8850 core. If
using the alignment FIFO all of the parallel data from the ort8850
core will also be clocked from this clock. This signal uses an ORCA
Series4 primary clock route.
Table 14. Register Settings for Bypass Mode (Continued)
Register Address
Value
Description