83Plus:Ports:15
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Revision as of 07:39, 11 July 2011 by Thepenguin77 (Talk | contribs)
| This port is protected, which means user programs cannot ordinarily write to it directly. |
Synopsis
Port Number: 15h
Function: ASIC Version
This port reports the ASIC version from which the number of ram pages and USB driver revision can be determined. On the 83+, it does something different.
Read Values
- 44 - TI-REF 83PLUSB/TA2 - Uses old USB driver and has 128KB of RAM
- 45 - TI-REF 84PLUSB/TA3 - Uses new USB driver and has 128KB of RAM
- 55 - TI-REF 84PLC/TA1 - Uses new USB driver and has 48KB of RAM
Write Values
No effect
Comments
Even though this port is in the protected range, it can't be written to. So there's really no reason to call it protected.
