參數資料
型號: ORSO42G5-2BMN484C
廠商: Lattice Semiconductor Corporation
文件頁數: 105/153頁
文件大?。?/td> 0K
描述: IC TRANCEIVERS FPSC 680FPGAM
產品變化通告: Product Discontinuation 01/Aug/2011
標準包裝: 60
系列: *
Lattice Semiconductor
ORCA ORSO42G5 and ORSO82G5 Data Sheet
55
If core FIFO cannot accept cells, cell_begin_ok will be low.
If core FIFO is empty then cell_begin_ok will be asserted every 4 clock cycles until cellvalid is asserted by user
to indicate valid cell data.
cellvalid: Clock-wide pulse asserted by user to indicate valid data. Asserted on the clock cycle following
cell_begin_ok.
Figure 41. ORSO42G5 and ORSO82G5 Transmit FPGA Interface OPC2 Cell Mode
When operating in the eight-link cell mode, the OPC8 block passes user cells from FPGA to embedded core.
Depending upon the congured CELL SIZE, cell transfers will take a variable number of SYSCLK156 cycles to be
transmitted across the interface. Data are always transferred across a 160-bit bus (20 octets per clock cycle).
Figure 42 shows ve clock cycles for a cell transfer this corresponds to a user cell size of 91 octets. The two control
signals in the gure are dened as:
sdo_bp_8: Backpressure signal from core instructing user to stop sending cell data. User should complete trans-
mitting the current cell and can send one more cell before deasserting cellvalid.
cellvalid: Is high throughout a cell transfer to indicate valid cell data
Figure 42. ORSO82G5 Transmit FPGA Interface OPC8 Cell Mode
SYSCLKx[1,2]
cell_begin_ok_x[1,2]
OPC2_x[1,2][39:0]
D
DDD
D
DD
D
DDDD
1 cycle
“n” clk cycles
Cell Size
Clk Cycles
(ocets)
75
79
83
91
16
20
OPC2_x[1,2]_cellvalid
SYSCLK156 8
SDO_BP_8
OPC8[159:0]
D
DDD
D
DD
D
DDDD
“n” clk cycles
Cell Size
Clk Cycles
(ocets)
75
79
83
91
4
5
OPC8_cellvalid
D
“n” clk cycles
相關PDF資料
PDF描述
ORSO42G5-3BMN484C IC TRANCEIVERS FPSC 680FPGAM
ORT82G5-1FN680I IC TRANCEIVERS FPSC 680FPBGA
ORT82G5-2FN680I IC TRANCEIVERS FPSC 680FPBGA
VI-J4H-IW-F4 CONVERTER MOD DC/DC 52V 100W
VI-J4H-IW-F3 CONVERTER MOD DC/DC 52V 100W
相關代理商/技術參數
參數描述
ORSO42G5-2BMN484I 功能描述:FPGA - 現場可編程門陣列 10368 LUT 204 I/O RoHS:否 制造商:Altera Corporation 系列:Cyclone V E 柵極數量: 邏輯塊數量:943 內嵌式塊RAM - EBR:1956 kbit 輸入/輸出端數量:128 最大工作頻率:800 MHz 工作電源電壓:1.1 V 最大工作溫度:+ 70 C 安裝風格:SMD/SMT 封裝 / 箱體:FBGA-256
ORSO42G5-3BM484C 功能描述:FPGA - 現場可編程門陣列 10368 LUT 204 I/O RoHS:否 制造商:Altera Corporation 系列:Cyclone V E 柵極數量: 邏輯塊數量:943 內嵌式塊RAM - EBR:1956 kbit 輸入/輸出端數量:128 最大工作頻率:800 MHz 工作電源電壓:1.1 V 最大工作溫度:+ 70 C 安裝風格:SMD/SMT 封裝 / 箱體:FBGA-256
ORSO42G5-3BMN484C 功能描述:FPGA - 現場可編程門陣列 10368 LUT 204 I/O RoHS:否 制造商:Altera Corporation 系列:Cyclone V E 柵極數量: 邏輯塊數量:943 內嵌式塊RAM - EBR:1956 kbit 輸入/輸出端數量:128 最大工作頻率:800 MHz 工作電源電壓:1.1 V 最大工作溫度:+ 70 C 安裝風格:SMD/SMT 封裝 / 箱體:FBGA-256
ORSO42G5-EV 功能描述:可編程邏輯 IC 開發(fā)工具 Eval Brd ORSO42G5 RoHS:否 制造商:Altera Corporation 產品:Development Kits 類型:FPGA 工具用于評估:5CEFA7F3 接口類型: 工作電源電壓:
ORSO82G5 制造商:LATTICE 制造商全稱:Lattice Semiconductor 功能描述:0.6 to 2.7 Gbps SONET Backplane Interface FPSCs