Spectrum Digital XDS510PP Installation Manual page 14

Spectrum Digital, Inc
2.3 Emulator Cable Pod Signal Timing
Figure 2-3 shows the signal timings for the emulator. Table 2-2 defines the timing
parameters for the emulator. The timing parameters are calculated from standard
data sheet parts used in the emulator and cable pod. These parameters are for
reference only. Spectrum Digital does not test or guarantee these timings.
TMS TDI (Optional)
No. Reference
1 t
H 3 m i n
t
H 3 m a x
2 t
H 3 h ig hm in
3 t
H 3 low m in
4 td
( E M U 0, 1, 2 )
5 tsu
( E M U 3 )
6 thd
( E M U 3 )
2-4
Figure 2-3. Emulator POD Timing
H3
EMU0
EMU1
EMU2
EMU3
Table 2: Emulator Pod Timing Parameters
Description
H3 period
H3 high pulse duration
H3 low pulse duration
EMU0, 1, 2 valid from H3 low
EMU3 setup time to H3 high
EMU3 hold time from H3 high
1
2
3
4
5
XDS510PP MPSD Emulator Pod Installation Guide
6
Min Max Units
30 200 ns
8 ns
8 ns
1 5 ns
3 ns
0 ns