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JTAG
Intel® Quark™ SE Microcontroller C1000
Platform Design Guide
June 2017
44
Document Number: 334715-004EN
10.0
JTAG
This section provides JTAG related information.
10.1
Signal Descriptions
Figure 20. JTAG Topology
Intel®
Quark
SE
SoC
Debug
connector
TDO
VREF_DEBUG
R2
L1
Lterm2
TDI/TMS/TCK
VREF_DEBUG
R1
Lterm1
L1
Table 25. Generic Routing Requirements
JTAG
TDO/TDI/TMS/TCK
Main Routing
Termination
Route for TDO
Termination
Route for
TDI/TMS/TCK
Transmission Line Segment
TL1
TLterm2
TLterm1
Routing Layer
(Microstrip/Stripline/Dual
Stripline)
MS/SL
MS/SL
MS/SL
Characteristic Impedance (SE)
50Ω +/- 10%
50Ω +/- 10%
50Ω +/- 10%
Trace Width (w)
Meet impedance
Meet impedance
Meet
impedance
Trace Spacing(S): Both
between JTAG signals and to
other signals
3W
3W
3W
Trace Length
L1 + Lterm(1/2)
<5500 mils
<250 mils
<1100 mil
Total Trace Length
<5500 mils
Max unterminated stub
length
<1100 mil
Length mismatch between
DATA and TCK
<250 mil
Reference
VSS referencing
Termination
R1 = 51 Ω +/- 5%; R2 = 51 Ω +/- 5%