參數(shù)資料
型號： XC2S400E-6FGG456C
廠商： Xilinx Inc
文件頁數(shù)： 20/108頁
文件大?。?/td> 0K
描述： IC SPARTAN-IIE FPGA 400K 456FBGA
產(chǎn)品變化通告： FPGA Family Discontinuation 18/Apr/2011
標準包裝： 60
系列： Spartan®-IIE
LAB/CLB數(shù)： 2400
邏輯元件/單元數(shù)： 10800
RAM 位總計： 163840
輸入/輸出數(shù)： 329
門數(shù)： 400000
電源電壓： 1.71 V ~ 1.89 V
安裝類型： 表面貼裝
工作溫度： 0°C ~ 85°C
封裝/外殼： 456-BBGA
供應(yīng)商設(shè)備封裝： 456-FBGA
其它名稱： 122-1327
DS077-2 (v3.0) August 9, 2013
19
Product Specification
Spartan-IIE FPGA Family: Functional Description
R
— OBSOLETE — OBSOLETE — OBSOLETE — OBSOLETE —
The public boundary-scan instructions are available prior to
configuration, except for USER1 and USER2. After configu-
ration, the public instructions remain available together with
any USERCODE instructions installed during the configura-
tion. While the SAMPLE/PRELOAD and BYPASS instruc-
tions are available during configuration, it is recommended
that boundary-scan operations not be performed during this
transitional period.
In addition to the test instructions outlined above, the
boundary-scan circuitry can be used to configure the
FPGA, and also to read back the configuration data.
To facilitate internal scan chains, the User Register provides
three outputs (Reset, Update, and Shift) that represent the
corresponding states in the boundary-scan internal state
machine.
Figure 14 is a diagram of the Spartan-IIE family boundary
scan logic. It includes three bits of Data Register per IOB,
the IEEE 1149.1 Test Access Port controller, and the
Instruction Register with decodes.
INTEST
00111
Enables boundary-scan
INTEST operation
USERCODE
01000
Enables shifting out
USER code
IDCODE
01001
Enables shifting out of
ID Code
HIGHZ
01010
Disables output pins
while enabling the
Bypass Register
JSTART
01100
Clock the start-up
sequence when
StartupClk is TCK
BYPASS
11111
Enables BYPASS
RESERVED
All other
codes
Xilinx reserved
instructions
Table 8: Boundary-Scan Instructions (Continued)
Boundary-Scan
Command
Binary
Code[4:0]
Description
Figure 14: Spartan-IIE Family Boundary Scan Logic
D
Q
D
Q
IOB
M
U
X
Bypass
Register
IOB
TDO
TDI
IOB
1
0
1
0
1
0
1
0
1
0
sd
LE
DQ
D
Q
D
Q
1
0
1
0
1
0
1
0
DQ
LE
sd
LE
DQ
sd
LE
DQ
IOB
D
Q
1
0
DQ
LE
sd
IOB.T
DATA IN
IOB.I
IOB.Q
IOB.T
IOB.I
SHIFT/
CAPTURE
CLOCK DATA
REGISTER
DATAOUT
UPDATE
EXTEST
DS001_09_032300
Instruction Register
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