Datasheet

57
AT32UC3A
12.10 JTAG Timings
12.10.1 JTAG Interface Signals
Note: 1. V
VDDIO
from 3.0V to 3.6V, maximum external capacitor = 40pF
Table 12-29. JTAG Interface Timing specification
Symbol Parameter Conditions Min Max Units
JTAG
0
TCK Low Half-period
(1)
6ns
JTAG
1
TCK High Half-period
(1)
3ns
JTAG
2
TCK Period
(1)
9ns
JTAG
3
TDI, TMS Setup before TCK High
(1)
1ns
JTAG
4
TDI, TMS Hold after TCK High
(1)
0ns
JTAG
5
TDO Hold Time
(1)
4ns
JTAG
6
TCK Low to TDO Valid
(1)
6ns
JTAG
7
Device Inputs Setup Time
(1)
ns
JTAG
8
Device Inputs Hold Time
(1)
ns
JTAG
9
Device Outputs Hold Time
(1)
ns
JTAG
10
TCK to Device Outputs Valid
(1)
ns
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