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EP2A25 数据表(PDF) 28 Page - Altera Corporation

部件名 EP2A25
功能描述  This datasheet describes enhanced configuration (EPC) devices
Download  36 Pages
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制造商  ALTERA [Altera Corporation]
网页  http://www.altera.com
标志 ALTERA - Altera Corporation

EP2A25 数据表(HTML) 28 Page - Altera Corporation

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IEEE Std. 1149.1 (JTAG) Boundary-Scan
Enhanced Configuration (EPC) Devices Datasheet
January 2012
Altera Corporation
You can also program the EPC devices using the Quartus II software, the Altera
Programming Unit (APU), and the appropriate configuration device programming
adapter. Table 12 lists which programming adapter to use with each EPC device.
IEEE Std. 1149.1 (JTAG) Boundary-Scan
The EPC device provides JTAG BST circuitry that complies with the IEEE Std.
1149.1-1990 specification. JTAG BST can be performed before or after configuration,
but not during configuration.
Figure 6 shows the timing requirements for the JTAG signals.
Table 13 lists the timing parameters and values for the EPC device.
Table 12. Programming Adapters
Device
Package
Adapter
EPC16
88-pin UFBGA
PLMUEPC-88
100-pin PQFP
PLMQEPC-100
EPC8
100-pin PQFP
PLMQEPC-100
EPC4
100-pin PQFP
PLMQEPC-100
Figure 6. JTAG Timing Waveforms
TDO
TCK
tJPZX
tJPCO
tJPH
tJPXZ
tJCP
tJPSU
tJCL
tJCH
TDI
TMS
Signal
to be
Captured
Signal
to be
Driven
tJSZX
tJSSU
tJSH
tJSCO
tJSXZ
Table 13. JTAG Timing Parameters and Values (Part 1 of 2)
Symbol
Parameter
Min
Max
Unit
tJCP
TCK
clock period
100
ns
tJCH
TCK
clock high time
50
ns
tJCL
TCK
clock low time
50
ns
tJPSU
JTAG port setup time
20
ns
tJPH
JTAG port hold time
45
ns
tJPCO
JTAG port clock output
25
ns
tJPZX
JTAG port high impedance to valid output
25
ns


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