EP20K400CB652C7 Altera, EP20K400CB652C7 Datasheet - Page 53

• Manufacturer Part Number: EP20K400CB652C7
• Description: APEX 20KC
• Manufacturer: Altera

Altera Corporation
f
Figure 30. APEX 20KC JTAG Waveforms
Table 16
devices.
For more information, see the following documents:
■
Captured
t
t
t
t
t
t
t
t
t
t
t
t
t
Symbol
JCP
JCH
JCL
JPSU
JPH
JPCO
JPZX
JPXZ
JSSU
JSH
JSCO
JSZX
JSXZ
Table 16. APEX 20KC JTAG Timing Parameters & Values
Driven
Signal
Signal
to Be
to Be
TMS
TDO
TCK
Application Note 39 (IEEE Std. 1149.1 (JTAG) Boundary-Scan Testing in
Altera Devices)
TDI
shows the JTAG timing parameters and values for APEX 20KC
TCK clock period
TCK clock high time
TCK clock low time
JTAG port setup time
JTAG port hold time
JTAG port clock to output
JTAG port high impedance to valid output
JTAG port valid output to high impedance
Capture register setup time
Capture register hold time
Update register clock to output
Update register high impedance to valid output
Update register valid output to high impedance
t
JCH
t
t
JPZX
JSZX
t
JCP
t
JSSU
APEX 20KC Programmable Logic Device Data Sheet
t
JCL
Parameter
t
JSH
t
t
JPCO
JSCO
t
JPSU
t
t
JSXZ
JPH
Min
100
50
50
20
45
20
45
t
JPXZ
Max
25
25
25
35
35
35
Unit
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
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