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Publication No. PEX430-0HH/1QD
Configuration and Power-Up 17
3.1.6
JTAG Chain (E4)
The PEX430 includes a JTAG test chain. There is an option either to use the full JTAG
test chain or to reduce the chain to program the CPLD.
Table 3-7
PEX430 E4 Pins 1-2
PEX430 E4 Pins 3-4
Description
Open
Open
JTAG Chain is incomplete
Open
Closed
Short JTAG Chain
–
used for CPLD Programming
Closed
Open
Full JTAG Chain
–
used for JTAG testing
Closed
Closed
Invalid option
–
DO NOT USE
3.2
Power-Up
The PEX430 does not have any specific power supply start up sequence
requirements.
The PEX430 requires a 5 volt DC supply to operate. The 5 volt supply is the main
power supply and will need to be of sufficient power for the proper operation of the
PEX430. The PEX430 produces all other supplies required for proper operation
internally.
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