Spectrum Digital, Inc
2-4
XDS510PP MPSD Emulator Pod Installation Guide
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.
Figure 2-3. Emulator POD Timing
Table 2: Emulator Pod Timing Parameters
No.
Reference
Description
Min
Max
Units
1
t
H 3 m i n
H3 period
30
200
ns
t
H 3 m a x
2
t
H 3 h i g h m i n
H3 high pulse duration
8
ns
3
t
H 3 l o w m i n
H3 low pulse duration
8
ns
4
td
( E M U 0 , 1 , 2 )
EMU0, 1, 2 valid from H3 low
1
5
ns
5
tsu
( E M U 3 )
EMU3 setup time to H3 high
3
ns
6
thd
( E M U 3 )
EMU3 hold time from H3 high
0
ns
6
5
4
TMS TDI (Optional)
EMU2
EMU1
EMU0
EMU3
1
H3
2
3
