P1149.7 - Board Test Workshop Home Page
P1149.7 - Board Test Workshop Home Page
P1149.7 - Board Test Workshop Home Page
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Harmony with the 1149.1 Standard<br />
TMS becomes Bi-directional in 2-pin modes<br />
• TMS renamed TMSC<br />
• Drive while TCK low, Hi-z while TCK high<br />
• Data sampling programmable (TCK , TCK )<br />
• Always HI-z when TCK high<br />
• Also used for Link Reset<br />
SW Same IP<br />
Infrastructure<br />
Remains<br />
TMSC toggling while TCK high<br />
• 6 edges - while Link Reset<br />
• 2/3 edges – escape data transmission (extra cntl.)<br />
Same Drivers<br />
Virtually<br />
4-pin Star<br />
• Looks like 2-pin with TDI/TDO added<br />
• Parallel addressability works the same as 2-pin<br />
• All initialization works the same<br />
Plug Untouched and Play<br />
Configuration<br />
4-pin Series<br />
• Looks like 2-pin with series TDI/TDO added<br />
• Parallel addressability/initialization works the same<br />
• Parallel (Star) and Series Addressing (Super Bypass TM )<br />
(except for TAP selection layer)<br />
2- pin<br />
Star<br />
TCK<br />
TMSC<br />
4 - pin<br />
Star<br />
TCK<br />
TMSC<br />
TDI<br />
TDO<br />
4 - pin<br />
Series<br />
TCK<br />
TMSC<br />
TDI<br />
TDO<br />
TI<br />
Mobile<br />
TI<br />
Mobile<br />
TI<br />
Mobile<br />
TI<br />
Video<br />
2-pin Star<br />
+<br />
TI<br />
Video<br />
4-pin Star<br />
+<br />
TI<br />
Video<br />
TI<br />
Telecom<br />
TI<br />
Telecom<br />
TI<br />
Telecom<br />
4-pin Series<br />
GS - BTW - 09/014/2006
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