ST10F271E STMICROELECTRONICS [STMicroelectronics], ST10F271E Datasheet - Page 27

• Manufacturer Part Number: ST10F271E
• Description: 16-bit MCU with 128 Kbyte Flash memory and 8/12 Kbyte RAM
• Manufacturer: STMICROELECTRONICS [STMicroelectronics]

ST10F271B/ST10F271E
5.2.2
2
mapping. Accesses to this address range will send back the content of the Flash cell (by
default FFFFh, blank value when the device is delivered)
Accesses to the area will send back the value 009Bh.
Modules structure
The IFLASH module is composed by a bank (Bank 0) of 256 Kbyte of Program Memory
divided in 8 sectors (B0F0...B0F7). Bank 0 contains also a reserved sector named Test-
Flash. The Addresses from 0x08 0000 to 0x08 FFFF are reserved for the Control Register
Interface and other internal service memory space used by the Flash Program/Erase
controller.
The following tables show the memory mapping of the Flash when it is accessed in read
mode (
write or erase mode (
ROMS1=’1’ or BootStrap mode)
are remapped into code segment 1 (same as obtained setting bit ROMS1 in SYSCON
register).
Table 4.
1. IFlash sectors B0F6 and B0F7 are not physically disabled. The corresponding area must be reserved by
Table 5.
Bank
Bank
the application mapping. Accesses to this area will send back the content of the Flash cell ( by default
FFFFh: the erased state, if not modified by user).
B0
B0
Table 4: Flash modules sectorization (Read operations)
Flash modules sectorization (Read operations)
Flash modules sectorization
(Write operations or with ROMS1=’1’ or BootStrap mode)
Bank 0 Flash 6 (B0F6)
Bank 0 Flash 7 (B0F7)
Bank 0 Test-Flash (B0TF)
Bank 0 Flash 6 (B0F6)
Bank 0 Flash 7 (B0F7)
Bank 0 Flash 0 (B0F0)
Bank 0 Flash 1 (B0F1)
Bank 0 Flash 2 (B0F2)
Bank 0 Flash 3 (B0F3)
Bank 0 Flash 4 (B0F4)
Bank 0 Flash 5 (B0F5)
Bank 0 Flash 0 (B0F0)
Bank 0 Flash 1 (B0F1)
Bank 0 Flash 2 (B0F2)
Bank 0 Flash 3 (B0F3)
Bank 0 Flash 4 (B0F4)
Bank 0 Flash 5 (B0F5)
Description
Description
Table 5: Flash modules sectorization (Write operations or with
): note that with this second mapping, the first four banks
(1)
(1)
(1)
(1)
0x0003 0000 - 0x0003 FFFF
0x0004 0000 - 0x0004 FFFF
0x0000 0000 - 0x0000 1FFF
0x0000 2000 - 0x0000 3FFF
0x0000 4000 - 0x0000 5FFF
0x0000 6000 - 0x0000 7FFF
0x0001 8000 - 0x0001 FFFF
0x0002 0000 - 0x0002 FFFF
0x0000 0000 - 0x0000 1FFF
0x0001 0000 - 0x0001 1FFF
0x0001 2000 - 0x0001 3FFF
0x0001 4000 - 0x0001 5FFF
0x0001 6000 - 0x0001 7FFF
0x0001 8000 - 0x0001 FFFF 32 KB
0x0002 0000 - 0x0002 FFFF 64 KB
0x0003 0000 - 0x0003 FFFF 64 KB
0x0004 0000 - 0x0004 FFFF 64 KB
Addresses
Addresses
), and when accessed in
Internal Flash memory
32 KB
64 KB
64 KB
64 KB
8 KB
8 KB
8 KB
8 KB
Size
8 KB
8 KB
8 KB
8 KB
8 KB
Size
ST10 Bus size
ST10 Bus size
32-bit (I-BUS)
32-bit (I-BUS)
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