| US 7,543,208 B2 | ||
| JTAG to system bus interface for accessing embedded analysis instruments | ||
| Hongshin Jun, San Jose, Calif. (US); Gyaneshwar S. Saharia, Cupertino, Calif. (US); and William Eklow, San Jose, Calif. (US) | ||
| Assigned to Cisco Technology, Inc., San Jose, Calif. (US) | ||
| Filed on Jul. 26, 2006, as Appl. No. 11/493,784. | ||
| Prior Publication US 2008/0052582 A1, Feb. 28, 2008 | ||
| Int. Cl. G01R 31/28 (2006.01) | ||
| U.S. Cl. 714—727 [714/729] | 20 Claims |
| 1. An apparatus for communicating with embedded devices, the apparatus comprising:
one or more parallel buses communicatively coupled to one or more devices including embedded analysis instruments;
a JTAG interface configured for shifting in (receiving) and out (sending) serial JTAG commands and data; and
a JTAG bus controller configured to interface said parallel buses and the JTAG interface; wherein said interfacing includes
converting between said received serial commands and data into commands to be sent over said parallel buses to said embedded
analysis instruments.
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