8 Chapter 2: TI-83 Plus Specific Information
TI-83 Plus Developer Guide Third Release May 28, 2002
Flash ROM Structure
The TI-83 Plus Flash ROM is composed of 512K bytes divided into 32 pages, each of
which is 16K bytes in size. Fig. 2.5 represents the Flash ROM structure.
00000 Addr Page(s) Size
OS 03 – 00 03 – 00 64 K
OS 07 – 04 07 – 04 64K
SWAP/USER DATA 0B – 08 11 – 08 64K
SWAP/USER APPS/DATA 0F – 0C 15 – 12 64K
USER APPS/DATA 13 – 10 19 – 16 64 K
USER APPS/DATA 15 – 14 21 – 20 32K
CERTIFICATE LIST 17 – 16 23 – 22 32 K
OS 1B – 18 27 – 24 64K
SYSTEM PRIVILEGED 1D – 1C 29 – 28 32K
CERTIFICATION 1E 30 16K
7FFFF BOOT 1F 31 16K
Fig. 2.5: TI-83 Plus Flash ROM Structure
Legend
SWAP and/or User APPS Area
Update System (OS) Area
Fixed Area — changeable only by TI