Change SCANSTA111 to SCANSTA112
The main feature that is only present in SCANSTA112 is the Transparent
Stitcher Mode.
In this mode, the IC can be configured via hardware to skip the
addressing protocol needed, so we don't have to run a SVF configuration
file on IMPACT when programming the FPGA bitstream (the JTAG mux would
already be transparent a directed to the FPGA chain).
Another reason to perform this upgrade is that we can include the MMC in the JTAG chain, since the SCANSTA112 has 7 slots, rather than the 3 in SCANSTA111. This would allow us to program and debug the LPC17xx controllers using openOCD and Buspirate for example, as described in this link.
The addressing pins needed to put the SCANSTA112 in the Transparent Stitcher Mode should be controlled by the MMC.
More information about these JTAG switches can be found in this document from Texas Instruments.
See https://github.com/lnls-dig/afc-hw/project/ohr-support/issues/232