Patent ID: 8214702
Filing Date: 2012-07-03
Classification: G01R

Abstract:
1. An apparatus, comprising: an intra-complex management network to communicate first scan information and second scan information in a distributed Joint Test Access Group (JTAG) test bus controller (TBC) architecture; on-board administration logic to place the first scan information and the second scan information on the intra-complex management network; and a first circuit board to receive the first scan information from the on-board administration logic via the intra-complex management network based on a first circuit board address, the first circuit board comprising a first TBC, two or more first test access ports (TAPs) arranged in a first TAP chain confined to the first circuit board, and a first on-board scan programming (OSP) programmable component; a second circuit board to receive the second scan information from the on-board administration logic via the intra-complex management network based on a second circuit board address, the second circuit board comprising a second TBC, two or more second TAPs arranged in a second TAP chain confined to the second circuit board, and a second on-board scan programming (OSP) programmable component, the first TBC to produce a first set of JTAG OSP commands from the first scan information and to provide the first set of JTAG OSP commands to the first TAP chain to control OSP of the first OSP programmable component and the second TBC to produce a second set of JTAG OSP commands from the second scan information and to provide the second set of JTAG OSP commands to the second TAP chain to control OSP of the second OSP programmable component at least partially in parallel with the OSP of the first OSP programmable component.