欢迎访问ic37.com |
会员登录 免费注册
发布采购

ECP2-35 参数 Datasheet PDF下载

ECP2-35图片预览
型号: ECP2-35
PDF下载: 下载PDF文件 查看货源
内容描述: LatticeECP2 / M系列数据表 [LatticeECP2/M Family Data Sheet]
分类和应用:
文件页数/大小: 386 页 / 2475 K
品牌: LATTICE [ LATTICE SEMICONDUCTOR ]
 浏览型号ECP2-35的Datasheet PDF文件第23页浏览型号ECP2-35的Datasheet PDF文件第24页浏览型号ECP2-35的Datasheet PDF文件第25页浏览型号ECP2-35的Datasheet PDF文件第26页浏览型号ECP2-35的Datasheet PDF文件第28页浏览型号ECP2-35的Datasheet PDF文件第29页浏览型号ECP2-35的Datasheet PDF文件第30页浏览型号ECP2-35的Datasheet PDF文件第31页  
Architecture  
LatticeECP2/M Family Data Sheet  
Lattice Semiconductor  
MAC sysDSP Element  
In this case, the two operands, A and B, are multiplied and the result is added with the previous accumulated value.  
This accumulated value is available at the output. The user can enable the input and pipeline registers, but the out-  
put register is always enabled. The output register is used to store the accumulated value. The Accumulators in the  
DSP blocks in the LatticeECP2/M family can be initialized dynamically. A registered overflow signal is also avail-  
able. The overflow conditions are provided later in this document. Figure 2-24 shows the MAC sysDSP element.  
Figure 2-24. MAC sysDSP  
Serial Register B in  
Multiplicand  
Serial Register A in  
Preload  
m
m
Accumulator  
m
n
Multiplier  
n
m+n+16  
(default)  
Multiplier  
m
n
Input Data  
Register A  
n
Output  
m+n  
m+n+16  
(default)  
x
(default)  
Input Data  
Register B  
Pipeline  
Register  
n
n
Signed A  
Signed B  
Input  
Register  
Pipeline  
Register  
Overflow  
signal  
To Accumulator  
To Accumulator  
To Accumulator  
Input  
Register  
Pipeline  
Register  
Input  
Register  
Pipeline  
Register  
Addn  
CLK (CLK0,CLK1,CLK2,CLK3)  
CE (CE0,CE1,CE2,CE3)  
Accumsload  
Input  
Register  
Pipeline  
Register  
To Accumulator  
RST(RST0,RST1,RST2,RST3)  
SROB  
SROA  
2-24  
 复制成功!