8.7.8. Scan chain 2

This scan chain allows EmbeddedICE's registers to be accessed. The scan chain is 38 bits in length.

The order of the scan chain, from TDI to TDO is:

See Figure 9.2 for more information.

To access this serial register, scan chain 2 must first be selected via the SCAN_N TAP controller instruction. The TAP controller must then be place in INTEST mode.

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