83Plus:Ports:24

This port only exists as a distinct port on the TI-83 Plus Silver Edition, the TI-84 Plus, and the TI-84 Plus Silver Edition. On the standard TI-83 Plus, it acts as a shadow of port 04.

This port is protected, which means user programs cannot ordinarily write to it directly.

Synopsis

Port Number: 24h

Function: Flash Execution Limits High Bit

Bit 0 of this port forms the high bit of page number for port 23. Bit 1 of this port forms the high bit of the page number for port 24. Therefore, this port supports 8 MB flash chips.

Since no 8 MB flash chip exists, this port in effect overrides port 23 and is overridden by port port 22.

Write Values

• Bit 0: High bit (bit 8) of port 23
• Bit 1: High bit (bit 8) of port 24
• Bits 2-7: Toggleable, but no effect is apparent

Read Values

• Bit 0-7: Reads whatever was last written

Comments

Bits 2-7 can be toggled so they may have a use, too.

This port does not exist on the standard 83 Plus. See ports 5 and 16 instead.

See Also

• Port 26
• Port 21
• Port 22
• Port 23