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TIMING
JTAG timing
510 Hardware Reference NS9215
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JTAG timing
All AC characteristics are measured with 10pF, unless otherwise noted.
The next table describes the values shown in the JTAG timing diagram.
Notes:
1 Maximum tck rate is 10 MHz.
2 rtck_out is an asynchronous output, driven off of the CPU clock.
3 trst_n is an asynchronous input.
Parm Description Min Max Unit
J1 tms (input) setup to tck rising 5 ns
J2 tms (input) hold to tck rising 2 ns
J3 tdi (input) setup to tck rising 5 ns
J4 tdi (input) hold to tck rising 2 ns
J5 tdo (output) to tck falling 2.5 10 ns
J1 J2
J3 J4
J5 J5
tck
rtck_out
tms
tdi
tdo
trst_n