What is a Bypass Instruction? The Bypass Instruction is an IEEE
1149.1 mandatory instruction which selects the single bit Bypass
register between the TDI and TDO. The Bypass Instruction bit
pattern shall be all logic 1s in the Instruction Register and
must decode to the Bypass instructions. It is also possible to
decode other bit patterns into a Bypass Instruction. Example of
a Bypass Instruction with an 8-bit instruction length: "BYPASS
(11111111)," &