
Recommended Target Connectors
30
Table A-5 summarizes the specifications for a 20-pin TAP connector without latch ejector.
Equivalent connectors are available from other manufacturers.
Reference
Description
Manufacturer Part Number
Flash TAP
Straight header, 20-pin, 4 wall, with center notch
3M
2520-6002UG
Table A-5.
Flash Programming TAP 20-Pin Connector
Table A-6 describes the signals and Corelis recommended values of terminating resistors:
Pin Signal
Direction
Termination
1
TRST*
Input to the UUT 1K pull-up (or 1.5K pull-down)
2
GND
3
TDI
Input to the UUT 1K pull-up
4
GND
5
TDO
Output from UUT 33 ohm series
6
GND
7
TMS
Input to the UUT 1K pull-up
8
GND
9
TCK
Input to the UUT 1K pull-up
10 GND
11
Write_Strobe*
/GPIO1
Input to the UUT 1K pull-up
12 GND
13 GPIO2
Input to the UUT 1K pull-up
14 GND
15 Ready_Busy*
/ GPIO3
Output from the
UUT
1K pull-up
16 GND
17 reserved
18 reserved
19 reserved
20 reserved
Table A-6.
Signal Description and Termination
Note:
Some target
boards may require a
pull-down resistor on
the TRST* signal to
assure normal device
operations when not
in boundary-scan test
mode
Note:
The target
TDI signal is driven
by the TDO signal of
the
boundary-scan
controller
Note:
The target
TDO signal drives
the boundary scan
controller’s
TDI
signal
Содержание CORELIS PXIE-1149.1/4E
Страница 2: ......
Страница 6: ...iv 20 pin TAP Connector 29 Appendix B Self Test Utility Software 33 Self Test 33 ...
Страница 40: ......