SCANPSC110F SCAN Bridge Hierarchical and Multidrop Addressable JTAG Port (IEEE1149.
1 System Test Support) March 1993 Revised August 2000 SCANPSC110F SCAN Bridge Hierarchical and Multidrop Addressable JTAG Port (IEEE1149.
1 System Test Support) General Description The SCANPSC110F Bridge extends the IEEE Std.
1149.
1 test bus into a multidrop test bus environment.
The advantage of a hierarchical approach over a single serial scan chain is improved test throughput and the ability to remove a board from the system and retain test access to the remaining modules.
Each SCANPSC110F Bridge supports up to 3 local scan rings which can be accessed individually or combined serially.
Addressing is accomp...

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