EP7312_05 Datasheet, PDF (29/64 Pages) Cirrus Logic – High-performance, Low-power, System-on-chip with SDRAM & Enhanced with SDRAM & Enhanced

JTAG Interface
Parameter
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
EP7312
High-Performance, Low-Power System on Chip
Symbol
t_{clk_per}
t_{clk_high}
t_{clk_low}
t_JPs
t_JPh
t_JPco
t_JPzx
t_JPxz
Min
2
1
1
-
-
-
-
-
Max
-
-
-
0
3
10
12
19
Units
ns
ns
ns
ns
ns
ns
ns
ns
TCK
TMS
TDI
TDO
t_{clk_per}
t_{clk_high}
t_{clk_low}
t_JPh
t_JPs
t_JPzx
t_JPco
Figure 14. JTAG Timing Measurement
t_JPxz
DS508F1
©Copyright Cirrus Logic, Inc. 2005
(All Rights Reserved)
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