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전문가 상담

What is a linkage bit in a BSDL?

The linkage bit in a Boundary Scan Description Language (BSDL) is use to describe a nondigital pins such as power, ground, no-connects, or analog signals in a boundary scan device.

Example:

entity example is
generic (PHYSICAL_PIN_MAP : string := "DW_PACKAGE");
port (CLK:in bit; Q:out bit_vector(1 to 8);
D:in bit_vector(1 to 8);
GND, VCC:linkage bit;
OC_NEG:in bit;
TDO:out bit;
TMS, TDI, TCK:in bit);
use STD_1149_1_2001.all;