參數(shù)資料
型號(hào): QL5840-66CPS484M
廠(chǎng)商: QUICKLOGIC CORP
元件分類(lèi): 總線(xiàn)控制器
英文描述: PCI BUS CONTROLLER, PBGA484
封裝: 23 X 23 MM, 2.13 MM HEIGHT, 1 MM PITCH, PLASTIC, MS-034AAJ-1, BGA-484
文件頁(yè)數(shù): 4/80頁(yè)
文件大小: 1125K
代理商: QL5840-66CPS484M
2006 QuickLogic Corporation
QL58x0 Enhanced QuickPCI Target Family Data Sheet Rev. L
12
NOTE: Timing numbers in Table 9 represent -8 Worst Case Commercial conditions.
Table 9: ECU Mode Select Criteria
Instruction
Operation
ECU Performancea
, -8 WCC
a. tPD, tSU and tCO do not include routing paths in/out of the ECU block.
S1
S2
S3
tPD
tSU
tCO
0
Multiply
6.6 ns max
0
1
Multiply-Add
8.8 ns max
0
1
0
Accumulateb
b. Internal feedback path in ECU restricts max clk frequency to 238 MHz.
3.9 ns min
1.2 ns max
0
1
Add
3.1 ns max
1
0
Multiply (registered)c
c. B [15:0] set to zero.
9.6 ns min
1.2 ns max
1
0
1
Multiply- Add (registered)
9.6 ns min
1.2 ns max
1
0
Multiply - Accumulate
9.6 ns min
1.2 ns max
1
Add (registered)
3.9 ns min
1.2 ns max
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