参数资料
型号: ORT8850L-3BM680C
厂商: Lattice Semiconductor Corporation
文件页数: 22/105页
文件大小: 0K
描述: IC FPSC TRANSCEIVER 8CH 680-BGA
产品变化通告: Product Discontinuation 01/Aug/2011
标准包装: 24
系列: *
Lattice Semiconductor
ORCA ORT8850 Data Sheet
23
reset and all the local bus interface signals forced high, but the following active-high signals, PROT_SWITCH_AA,
PROT_SWITCH_AC, PROT_SWITCH_BA, PROT_SWITCH_BC, TX_TOH_CK_EN, SYS_FP, LINE_FP, will be
forced low. The CORE_READY signal sent from the embedded core to FPGA is held low, indicating that the core is
not ready to interact with FPGA logic. At the end of the FPGA conguration sequence, the CORE_READY signal
will be held low for six SYS_CLK cycles after DONE, TRI_IO and RST_N (core global reset) are high. Then it will go
active-high, indicating the embedded core is ready to function and interact with FPGA programmable circuit. During
FPGA reconguration when DONE and TRI_IO are low, the CORE_READY signal sent from the core to FPGA will
be held low again to indicate the embedded core is not ready to interact with FPGA logic. During FPGA partial con-
guration, CORE_READY stays active. The same FPGA conguration sequence described previously will repeat
again.
The initialization of the embedded core consists of two steps: register conguration and synchronization of the
alignment FIFO. The steps to congure the ORT8850 device for normal operation are listed in Table 4 and Table 5.
Generic Backplane Transceiver Application
Independent Channels, Transparent TOH: Table 4 lists the register values to setup the ORT8850 as eight inde-
pendent SONET channels (no alignment) using transparent TOH. The order is specic. The values are given from
the PowerPC point of view. If using the MPI to write data to the ORT8850, the value given in the table is the value
that should be used. If using the UMI of the system bus, the data value would need to be byte ipped.
Table 4. Independent Channels, Transparent TOH
Register
Address
Value
Description
0x30004
0x05
Lock register. This value must be written to allow writing to any other ORT8850 core register
0x30005
0x80
Lock register. This value must be written to allow writing to any other ORT8850 core register
0x30020
0x07
Turn on Channel AA in functional mode
0x30021
0xFF
Channel AA - Transparent TOH from parallel data
0x30022
0xFF
Channel AA - Transparent TOH from parallel data
0x30038
0x07
Turn on Channel AB in functional mode
0x30030
0xFF
Channel AB - Transparent TOH from parallel data
0x3003A
0xFF
Channel AB - Transparent TOH from parallel data
0x30050
0x07
Turn on Channel AC function mode
0x30051
0xFF
Channel AC - Transparent TOH from parallel data
0x30052
0xFF
Channel AB - Transparent TOH from parallel data
0x30068
0x07
Turn on Channel AD in functional mode
0x30069
0xFF
Channel AD - Transparent TOH from parallel data
0x3006A
0xFF
Channel AD - Transparent TOH from parallel data
0x30080
0x07
Turn on Channel BA functional mode
0x30081
0xFF
Channel BA- Transparent TOH from parallel data
0x30082
0xFF
Channel AD - Transparent TOH from parallel data
0x30098
0x07
Turn on Channel BB in functional mode
0x30099
0xFF
Channel BB- Transparent TOH from parallel data
0x3009A
0xFF
Channel BB- Transparent TOH from parallel data
0x300B0
0x07
Turn on Channel BC in functional mode
0x300B1
0xFF
Channel BC- Transparent TOH from parallel data
0x300B2
0xFF
Channel BC - Transparent TOH from parallel data
0x300C8
0x07
Turn on Channel BD in functional mode
0x300C9
0xFF
Channel BD - Transparent TOH from parallel data
0x300CA
0xFF
Channel BD - Transparent TOH from parallel data
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