參數(shù)資料
型號(hào)： ATT3042-100T84I
廠商： Electronic Theatre Controls, Inc.
元件分類： FPGA
英文描述： Field-Programmable Gate Arrays
中文描述： 現(xiàn)場(chǎng)可編程門陣列
文件頁(yè)數(shù)： 19/80頁(yè)
文件大?。?/td> 528K
代理商： ATT3042-100T84I
Data Sheet
February 1997
ATT3000 Series Field-Programmable Gate Arrays
Lucent Technologies Inc.
19
Configuration
(continued)
Configuration Data
Configuration data to define the function and interconnection within an FPGA are loaded from an external storage
at powerup and on a reprogram signal. Several methods of automatic and controlled loading of the required data
are available. Logic levels applied to mode selection pins at the start of configuration time determine the method to
be used (see Table 2). The data may be either bit-serial or byte-parallel, depending on the configuration mode.
Various Lucent programmable gate arrays have different sizes and numbers of data frames. For the ATT3020, con-
figuration requires 14779 bits for each device, arranged in 197 data frames. An additional 40 bits are used in the
header (see Figure 20).
* The FPGA devices require four dummy bits minimum.
Figure 19. Internal Configuration Data Structure
11111111
0010
< 24-BIT LENGTH COUNT >
1111
0 < DATA FRAME # 001 > 111
0 < DATA FRAME # 002 > 111
0 < DATA FRAME # 003 > 111
. . .
. . .
. . .
0 < DATA FRAME # 196 > 111
0 < DATA FRAME # 197 > 111
– DUMMY BITS*
– PREAMBLE CODE
– CONFIGURATION PROGRAM LENGTH
– DUMMY BITS (4 BITS MINIMUM)
197 CONFIGURATION DATA FRAMES
(EACH FRAME CONSISTS OF:
A START BIT (0)
A 71-BIT DATA FIELD
THREE STOP BITS
POSTAMBLE CODE (4 BITS MINIMUM)
REPEATED FOR EACH LOGIC
CELL ARRAY IN A DAISY CHAIN
1111
FOR ATT3020
HEADER
PROGRAM DATA
)
相關(guān)PDF資料
PDF描述
ATT3042-125H132I Field-Programmable Gate Arrays
ATT3042-125H44I Field-Programmable Gate Arrays
ATT3042-125H68I Field-Programmable Gate Arrays
ATT3042-125H84I Field-Programmable Gate Arrays
ATT3042-125J132I Field-Programmable Gate Arrays
相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
ATT3042125H132 制造商:Rochester Electronics LLC 功能描述:- Bulk
ATT3042-125H132I 制造商:未知廠家 制造商全稱:未知廠家 功能描述:Field-Programmable Gate Arrays
ATT3042-125H44I 制造商:未知廠家 制造商全稱:未知廠家 功能描述:Field-Programmable Gate Arrays
ATT3042-125H68I 制造商:未知廠家 制造商全稱:未知廠家 功能描述:Field-Programmable Gate Arrays
ATT3042-125H84I 制造商:未知廠家 制造商全稱:未知廠家 功能描述:Field-Programmable Gate Arrays
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