参数资料
型号: EP2C20F256I6N
厂商: ALTERA CORP
元件分类: FPGA
英文描述: FPGA, 1196 CLBS, PBGA256
封装: LEAD FREE, FBGA-256
文件页数: 110/168页
文件大小: 2206K
代理商: EP2C20F256I6N
2–34
Altera Corporation
Cyclone II Device Handbook, Volume 1
February 2007
Embedded Multipliers
Figure 2–18. Multiplier Block Architecture
Note to Figure 2–18:
(1)
If necessary, these signals can be registered once to match the data signal path.
Each multiplier operand can be a unique signed or unsigned number.
Two signals, signa and signb, control the representation of each
operand respectively. A logic 1 value on the signa signal indicates that
data A is a signed number while a logic 0 value indicates an unsigned
number. Table 2–11 shows the sign of the multiplication result for the
various operand sign representations. The result of the multiplication is
signed if any one of the operands is a signed value.
CLRN
DQ
ENA
Data A
Data B
aclr
clock
ena
signa (1)
signb (1)
CLRN
DQ
ENA
CLRN
DQ
ENA
Data Out
Embedded Multiplier Block
Output
Register
Input
Register
Table 2–11. Multiplier Sign Representation
Data A (signa Value)
Data B (signb Value)
Result
Unsigned
Signed
Unsigned
Signed
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EP2C20F256I8GA 制造商:Altera Corporation 功能描述:
EP2C20F256I8N 功能描述:FPGA - 现场可编程门阵列 FPGA - Cyclone II 1172 LABs 152 IOs RoHS:否 制造商:Altera Corporation 系列:Cyclone V E 栅极数量: 逻辑块数量:943 内嵌式块RAM - EBR:1956 kbit 输入/输出端数量:128 最大工作频率:800 MHz 工作电源电压:1.1 V 最大工作温度:+ 70 C 安装风格:SMD/SMT 封装 / 箱体:FBGA-256
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