參數(shù)資料
型號(hào): LFECP6E-4F900I
廠商: Lattice Semiconductor Corporation
英文描述: LatticeECP/EC Family Data Sheet
中文描述: LatticeECP / EC的系列數(shù)據(jù)手冊(cè)
文件頁(yè)數(shù): 22/117頁(yè)
文件大小: 557K
代理商: LFECP6E-4F900I
第1頁(yè)第2頁(yè)第3頁(yè)第4頁(yè)第5頁(yè)第6頁(yè)第7頁(yè)第8頁(yè)第9頁(yè)第10頁(yè)第11頁(yè)第12頁(yè)第13頁(yè)第14頁(yè)第15頁(yè)第16頁(yè)第17頁(yè)第18頁(yè)第19頁(yè)第20頁(yè)第21頁(yè)當(dāng)前第22頁(yè)第23頁(yè)第24頁(yè)第25頁(yè)第26頁(yè)第27頁(yè)第28頁(yè)第29頁(yè)第30頁(yè)第31頁(yè)第32頁(yè)第33頁(yè)第34頁(yè)第35頁(yè)第36頁(yè)第37頁(yè)第38頁(yè)第39頁(yè)第40頁(yè)第41頁(yè)第42頁(yè)第43頁(yè)第44頁(yè)第45頁(yè)第46頁(yè)第47頁(yè)第48頁(yè)第49頁(yè)第50頁(yè)第51頁(yè)第52頁(yè)第53頁(yè)第54頁(yè)第55頁(yè)第56頁(yè)第57頁(yè)第58頁(yè)第59頁(yè)第60頁(yè)第61頁(yè)第62頁(yè)第63頁(yè)第64頁(yè)第65頁(yè)第66頁(yè)第67頁(yè)第68頁(yè)第69頁(yè)第70頁(yè)第71頁(yè)第72頁(yè)第73頁(yè)第74頁(yè)第75頁(yè)第76頁(yè)第77頁(yè)第78頁(yè)第79頁(yè)第80頁(yè)第81頁(yè)第82頁(yè)第83頁(yè)第84頁(yè)第85頁(yè)第86頁(yè)第87頁(yè)第88頁(yè)第89頁(yè)第90頁(yè)第91頁(yè)第92頁(yè)第93頁(yè)第94頁(yè)第95頁(yè)第96頁(yè)第97頁(yè)第98頁(yè)第99頁(yè)第100頁(yè)第101頁(yè)第102頁(yè)第103頁(yè)第104頁(yè)第105頁(yè)第106頁(yè)第107頁(yè)第108頁(yè)第109頁(yè)第110頁(yè)第111頁(yè)第112頁(yè)第113頁(yè)第114頁(yè)第115頁(yè)第116頁(yè)第117頁(yè)
2-19
Architecture
Lattice Semiconductor
LatticeECP/EC Family Data Sheet
Table 2-8. An Example of Sign Extension
OVERFLOW Flag from MAC
The sysDSP block provides an over
fl
ow output to indicate that the accumulator has over
fl
owed. When two
unsigned numbers are added and the result is a smaller number then accumulator roll over is said to occur and
over
fl
ow signal is indicated. When two positive numbers are added with a negative sum and when two negative
numbers are added with a positive sum, then the accumulator “roll-over” is said to have occurred and an over
fl
ow
signal is indicated. Note when over
fl
ow occurs the over
fl
ow
fl
ag is present for only one cycle. By counting these
over
fl
ow pulses in FPGA logic, larger accumulators can be constructed. The conditions over
fl
ow signal for signed
and unsigned operands are listed in Figure 2-22.
Figure 2-22. Accumulator Overflow/Underflow Conditions
ispLEVER Module Manager
The user can access the sysDSP block via the ispLEVER Module Manager, which has options to con
fi
gure each
DSP module (or group of modules) or through direct HDL instantiation. Additionally Lattice has partnered Math-
works to support instantiation in the Simulink tool, which is a Graphical Simulation Environment. Simulink works
with ispLEVER and dramatically shortens the DSP design cycle in Lattice FPGAs.
Number Unsigned
+5
-6
Unsigned
9-bit
000000101
000000110
Unsigned
18-bit
Signed
0101
1010
Two’s Complement
Signed 9-Bits
000000101
111111010
Two’s Complement
Signed 18-bits
000000000000000101
111111111111111010
0101
0110
000000000000000101
000000000000000110
000000000
111111111
000000001
000000010
000000011
111111101
111111110
Overflow signal is generated
for one cycle when this
boundary is crossed
0
+1
+2
+3
-3
-2
-1
Unsigned Operation
Signed Operation
0101111111
0101111110
0101111101
0101111100
1010000010
1010000001
1010000000
255
254
253
252
254
255
256
000000000
000000001
000000010
000000011
111111101
111111110
111111111
Carry signal is generated for
one cycle when this
boundary is crossed
0
1
2
3
509
510
511
0101111111
1010000000
0101111110
0101111101
0101111100
1010000010
1010000001
255
256
254
253
252
258
257
相關(guān)PDF資料
PDF描述
LFECP6E-4T100I LatticeECP/EC Family Data Sheet
LFECP6E-4T144C LatticeECP/EC Family Data Sheet
LFECP6E-4T144I LinCMOS(TM) Quad Operational Amplifier 14-PDIP
LFECP6E-5F256C LatticeECP/EC Family Data Sheet
LFECP6E-5F256I LatticeECP/EC Family Data Sheet
相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
LFECP6E-4FN256C 功能描述:FPGA - 現(xiàn)場(chǎng)可編程門(mén)陣列 6.1 LUT 195 I/O RoHS:否 制造商:Altera Corporation 系列:Cyclone V E 柵極數(shù)量: 邏輯塊數(shù)量:943 內(nèi)嵌式塊RAM - EBR:1956 kbit 輸入/輸出端數(shù)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(fēng)格:SMD/SMT 封裝 / 箱體:FBGA-256
LFECP6E-4FN256I 功能描述:FPGA - 現(xiàn)場(chǎng)可編程門(mén)陣列 6.1 LUT 195 I/O RoHS:否 制造商:Altera Corporation 系列:Cyclone V E 柵極數(shù)量: 邏輯塊數(shù)量:943 內(nèi)嵌式塊RAM - EBR:1956 kbit 輸入/輸出端數(shù)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(fēng)格:SMD/SMT 封裝 / 箱體:FBGA-256
LFECP6E-4FN484C 功能描述:FPGA - 現(xiàn)場(chǎng)可編程門(mén)陣列 6.1 LUT 224 I/O RoHS:否 制造商:Altera Corporation 系列:Cyclone V E 柵極數(shù)量: 邏輯塊數(shù)量:943 內(nèi)嵌式塊RAM - EBR:1956 kbit 輸入/輸出端數(shù)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(fēng)格:SMD/SMT 封裝 / 箱體:FBGA-256
LFECP6E-4FN484I 功能描述:FPGA - 現(xiàn)場(chǎng)可編程門(mén)陣列 6.1 LUT 224 I/O RoHS:否 制造商:Altera Corporation 系列:Cyclone V E 柵極數(shù)量: 邏輯塊數(shù)量:943 內(nèi)嵌式塊RAM - EBR:1956 kbit 輸入/輸出端數(shù)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(fēng)格:SMD/SMT 封裝 / 箱體:FBGA-256
LFECP6E-4FN672C 制造商:LATTICE 制造商全稱(chēng):Lattice Semiconductor 功能描述:LatticeECP/EC Family Data Sheet