Rev. 3.00, 03/04, page 698 of 830
TA P
controller
ETCK
ETMS
TRST
ETDO
Mux
SDIR
Decoder
SDBPR
SDIR:
[Legend]
SDBPR:
SDBSR:
SDIDR:
Instruction register
Bypass register
Boundary scan register
ID code register
ETDI
SDIDR
SDBSR
Shift register
Figure 21.1 JTAG Block Diagram
