参数资料
型号: M-ORSO82G51BM680-DB
厂商: LATTICE SEMICONDUCTOR CORP
元件分类: FPGA
英文描述: FPGA, 1296 CLBS, 333000 GATES, PBGA680
封装: PLASTIC, FBGA-680
文件页数: 63/123页
文件大小: 2207K
代理商: M-ORSO82G51BM680-DB
Lattice Semiconductor
ORCA ORSO82G5 Data Sheet
44
Figure 29 shows the SONET quad alignment mode.
Figure 29. Receive SONET Mode—Quad Align Mode
Only frame pulse (DOUTxx_FP) and clocks are shown for understanding of quad alignment.
Timing of data and SPE indicators are the same as shown for twin alignment.
Quad groups are Group A - AA,AB,AC,AD and Group B - BA,BB,BC,BD
Figure 30 shows the octal alignment mode.
Figure 30. Receive SONET Mode—Octal Alignment Mode
RSYSCLK[A1,A2]
DOUTAA_FP
...
1 cycle
36 cycles TOH
1044 cycles SPE
36 cycles TOH
Start of Frame
125 s
Data
T Represents TOH
S Represents SPE
DOUTxx-SPE is high for SPE, low for TOH
Clocks
RSYSCLKA1 and RSYSCLKA2 are sourced by RCK78A
36 cycles TOH
Start of Frame
DOUTAB_FP
DOUTAC_FP
DOUTAD_FP
RSYSCLK[A1,A2]
DOUTAA_FP
...
1 cycle
36 cycles TOH
1044 cycles SPE
36 cycles TOH
Start of Frame
125 s
Data
T Represents TOH
S Represents SPE
DOUTxx-SPE is high for SPE, low for TOH
Clocks
RSYSCLKA1, RSYSCLKA2, RSYSCLKB1, and RSYSYSCLKB2
are sourced by RCK78A
36 cycles TOH
Start of Frame
DOUTAB_FP
DOUTAC_FP
DOUTAD_FP
RSYSCLK[A1,A2]
DOUTBA_FP
DOUTBB_FP
DOUTBC_FP
DOUTBD_FP
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