Maxim-integrated MAXQ Family Users Guide: MAXQ8913 Supplement Manual do Utilizador descarregar pdf (Página 51)

MAXQ Family User’s Guide:

MAXQ8913 Supplement

15-1

ADDENDUM TO SECTION 15: TEST ACCESS PORT (TAP)

The JTAG/TAP port on the MAXQ8913 is multiplexed with port pins P0.0, P0.1, P0.2, and P0.3. 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.

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Maxim-integrated MAXQ Family Users Guide: MAXQ8913 Supplement Manual do Utilizador Página 51