参数资料
型号: OR4E063BM680-DB
厂商: LATTICE SEMICONDUCTOR CORP
元件分类: FPGA
英文描述: FPGA, 2024 CLBS, 515000 GATES, PBGA680
封装: PLASTIC, FBGA-680
文件页数: 121/151页
文件大小: 2680K
代理商: OR4E063BM680-DB
Lattice Semiconductor
71
Data Sheet
September, 2002
ORCA Series 4 FPGAs
FPGA Conguration Modes (continued)
5-5764(F)
Figure 43. Readback Through MPI
ENABLE MICROPROCESSOR
SET READBACK ADDRESS
WRITE RD_CFG TO 0
DATA_RDY = 1?
READ DATA REGISTER
START OF FRAME
INCREMENT ADDRESS
DATA = 0xFF?
YES
READ STATUS REGISTER
IN CONTROL REGISTER 1
INTERFACE IN USER MODE
READ DATA REGISTER
FOUND?
READ UNTIL END OF FRAME
FINISHED
READBACK?
COUNTER IN SOFTWARE
YES
WRITE RD_CFG TO 1
IN CONTROL REGISTER 1
STOP
NO
ERROR
NO
ERROR
NO
READ DATA REGISTER
DATA = 0xFF?
YES
NO
ERROR
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