AN977 Datasheet, PDF (4/17 Pages) STMicroelectronics – GUIDELINES FOR UPGRADING FROM THE ST92F120

GUIDELINES FOR UPGRADING FROM THE ST92F120 (0.50 µm) TO THE ST92F124...
easier to address up to 4 external Mbytes. But segments 0h to 3h and 20h to 23h are not ex-
ternally available.
1.4.2 Flash Sector Organization
Sectors F0 to F3 have a new organization in the 128K and 60K Flash devices as shown in
Table 5 and Table 6. Table 3. and Table 4 show the previous organization.
Table 3. Memory Structure for 128K Flash ST92F120 Flash Device
Sector
Addresses
TestFlash (TF) (Reserved)
230000h to 231F7Fh
OTP Area
Protection Registers (reserved)
231F80h to 231FFBh
231FFCh to 231FFFh
Flash 0 (F0)
000000h to 00FFFFh
Flash 1 (F1)
010000h to 01BFFFh
Flash 2 (F2)
01C000h to 01DFFFh
Flash 3 (F3)
01E000h to 01FFFFh
EEPROM 0 (E0)
228000h to 228FFFh
EEPROM 1 (E1)
22C000h to 22CFFFh
Emulated EEPROM
220000h to 2203FFh
Table 4. Memory Structure for 60K Flash ST92F120 Flash Device
Max Size
8064 bytes
124 bytes
4 bytes
64 Kbytes
48 Kbytes
8 Kbytes
8 Kbytes
4 Kbytes
4 Kbytes
1 Kbyte
Sector
Addresses
TestFlash (TF) (Reserved)
230000h to 231F7Fh
OTP Area
Protection Registers (reserved)
231F80h to 231FFBh
231FFCh to 231FFFh
Flash 0 (F0)
000000h to 000FFFh
Reserved
001000h to 00FFFFh
Flash 1 (F1)
010000h to 01BFFFh
Flash 2 (F2)
01C000h to 01DFFFh
EEPROM 0 (E0)
228000h to 228FFFh
EEPROM 1 (E1)
22C000h to 22CFFFh
Emulated EEPROM
220000h to 2203FFh
Table 5. Memory Structure for 128K ST92F124/F150/F250 Flash device
Max Size
8064 bytes
124 bytes
4 bytes
4 Kbytes
60 Kbytes
48 Kbytes
8 Kbytes
4 Kbytes
4 Kbytes
1Kbyte
Sector
TestFlash (TF) (Reserved)
OTP Area
Protection Registers (reserved)
Flash 0 (F0)
Flash 1 (F1)
Flash 2 (F2)
Flash 3 (F3)
Addresses
230000h to 231F7Fh
231F80h to 231FFBh
231FFCh to 231FFFh
000000h to 001FFFh
002000h to 003FFFh
004000h to 00FFFFh
010000h to 01FFFFh
Max Size
8064 bytes
124 bytes
4 bytes
8 Kbytes
8 Kbytes
48 Kbytes
64 Kbytes
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