Maxim Integrated MAXQ Family Users Guide: MAXQ2010 Supplement - Manual (Page 71)

MAXQ Family User’s Guide:
MAXQ2010 Supplement
15-1
ADDENDUM TO SECTION 15: TEST ACCESS PORT (TAP)
The JTAG/TAP port on the MAXQ2010 is multiplexed with port pins P6.0, P6.1, P6.2, and P6.3. These pins default to the
JTAG/TAP function on reset, which means that the part is always ready for in-circuit debugging or in-circuit program-
ming operations following any reset.
Once an application has been loaded and starts running, the JTAG/TAP port can still be used for in-circuit debugging
operations. If in-circuit debugging functionality is not needed, the associated port pins can be reclaimed for applica-
tion use by setting the TAP (SC.7) bit to 0. This disables the JTAG/TAP interface and allows the four pins to operate
as normal port pins.