TCC720 Datasheet, PDF (47/143 Pages) List of Unclassifed Manufacturers – 32-bit RISC Microprocessor For Digital Media Player

TCC720
32-bit RISC Microprocessor for Digital Media Player
Dec. 16. 2002
GPIO PORT
Preliminary Spec 0.51
that CPU has written before.
In TCC720, there are various kinds of peripherals that generate its own control signals. These
peripherals can occupy the dedicated GPIO pins. This option is controlled by the state of the
GSELx register. If a bit of these GSELx is 1, the corresponding GPIO pin is entered to other
function mode, so used by other peripherals not by GPIO block. The direction control method of
GPIO pins in the other function mode is determined case by case. One of them follows the
normal direction control method using GDDR register, the other method uses a dedicated
direction control signals.
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