Patent ID: 7765447

Claim:
An integrated circuit comprising: A. plural TAPs, each TAP having a TDI input lead, a TDO output lead, a TMS input lead, and a TCK input lead; B. a TDI input terminal coupled with the TDI input lead of each TAP, a TDO output terminal coupled with the TDO output lead of each TAP, a TMS input terminal, and a TCK input terminal coupled with the TCK input lead of each TAP; C. control circuitry having a TDI input lead connected with the TDI input terminal, a TDO output lead coupled with the TDO output terminal, a TMS input lead connected with the TMS input terminal, a TCK input lead connected with the TCK input terminal, and control outputs; and D. logic circuitry connected to the control outputs and coupled with the TMS input lead of each TAP, the logic circuitry selectively coupling the TMS input terminal to the TMS input lead of each TAP.