CS5376
tion and data registers. In the capture operation,
data is loaded into the internal register. In the shift
operation, the captured data is shifted out while
new data is shifted in. In the update operation, ei-
ther the instruction register is loaded for instruction
decode, or the boundry-scan registers are updated
to control the outputs.
15.2.2 Boundary Scan Cells
Designed into each pin of the CS5376 is a bound-
ary scan cell. In normal operation with the JTAG
disabled, the boundary scan cells are transparent
and do not affect operation of the CS5376. When
using the JTAG port, the boundary scan cells give
the ability to write and read each pin independent
of the CS5376 operation. The boundary scan cells
are serially linked to create a scan chain around the
CS5376.
DS256PP1
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