702560 Spectrum Digital Inc, 702560 Datasheet - Page 30

• Manufacturer Part Number: 702560
• Description: XDS560R USB JTAG Emulator With 20 Pin CTI JTAG Header
• Manufacturer: Spectrum Digital Inc
• Type: USB JTAG Emulatorr

Specifications of 702560

• Contents: Board, Cable
• Ic Product Type: USB JTAG Emulator
• Kit Contents: XDS560R USB JTAG Emulator With CTI JTAG Header, CDROM With Drivers, USB Cable
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• For Use With/related Products: TI DSPs and JTAG Microcontrollers
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

Spectrum Digital, Inc
3.5.2 Using a Target-System Clock
3-12
Figure 3-7 shows an application with the system test clock generated in the target
system. In this application, the TCK signal is left unconnected.
Note: When the TMS/TDI lines are buffered, pull-up resistors should be used to hold the buffer inputs at a known level when
A benefit to having the target system generate the test clock, there may be other
devices in your system that require a test clock when the emulator is not connected.
The system test clock also serves this purpose.
the emulator cable is not connected.
Vcc I/O
GND
10
12
5
4
8
6
Figure 3-7, Target System Generated Test Clock
GND
TVD
GND
GND
GND
GND
Emulation Header
TCK_RET
EMU0
EMU1
TRST
TMS
TDO
TCK
TDI
14
13
11
2
9
1
3
7
Greater than 6 Inches
XDS560R JTAG Emulator Installation Guide
Vcc I/O
TRST
TMS
TDI
TDO
TCK
EMU0
EMU1
Target Device
System test
Clock