CHAPTER 6 JTAG BOUNDARY SCAN
PRELIMINARY
NEC confidential and Proprietary
305
CHAPTER 6 JTAG BOUNDARY SCAN
The
µ
PD98413 has a JTAG boundary scan circuit.
Caution: Some pins do not support the JTAG, as shown in the table.
Type
Name of Pin Which Does Not to Support JTAG
Number of Pins
PECL-level pins
T.B.D
T.B.D
ohters T.B.D
T.B.D
T.B.D T.B.D
T.B.D
6.1 Features
•
Conforms to IEEE1149.1 JTAG Boundary Scan Standard.
•
Three registers dedicated to boundary scan
•
Instruction register
•
Bypass register
•
Boundary scan register
•
Three instructions supported
•
BYPASS instruction
•
EXTEST instruction
•
SAMPLE/PRELOAD instruction
•
Five pins dedicated to boundary scan
•
JCK (JTAG Clock)
•
JMS (JTAG Mode Select)
•
JDI (JTAG Data Input)
•
JDO (JTAG Data Output)
•
JRST_B (JTAG Reset)
Summary of Contents for NEASCOT-P65
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