83Plus:Ports:41

Synopsis

Port Numbers: 41h through 44h

Function: Clock Setting Ports (as shown on the mode screen)

These ports are used to set a new value to the TI-84+'s timer.

For further information on the clock, read the documentation for port 40h.

Comments

Reading from the port simply gives the last value outputted to the port. These ports are nothing more than a simple external "register" where the new clock values are stored.

Like the actual clock ports (ports 45h-48h), these are arranged so the first port is the least significant byte in a 32-bit value, which gives the number of seconds after midnight, January 1st, 1997.

Credits and Contributions

• Michael Vincent: Initial Documentation