st10f273m STMicroelectronics, st10f273m Datasheet - Page 27

• Manufacturer Part Number: st10f273m
• Description: 16-bit Mcu With 512 Kbyte Flash Memory And 36 Kbyte Ram
• Manufacturer: STMicroelectronics

ST10F273M
5
5.1
5.2
5.2.1
5.2.2
Internal Flash memory
Overview
The on-chip Flash is composed of one matrix module of one bank of 512 Kbytes, named
Bank0, that can be read and modified. This module is called IFlash because it is on the
ST10 Internal bus.
Figure 6.
The programming operations of the Flash are managed by an embedded Flash
Program/Erase Controller (FPEC). The high voltages needed for Program/Erase operations
are generated internally.
The Data bus is 32-bit wide for fetch accesses to IFlash. Read/write accesses to IFlash
Control Registers area are 16-bit wide.
Functional description
Structure
Table 3
Table 3.
Module structure
The IFlash module is composed of a bank (Bank 0) of 512 Kbytes of program memory
divided in 12 sectors (B0F0...B0F11). Bank 0 also contains a reserved sector named Test-
Flash.
IFlash sectors
Registers and Flash internal reserved area
below shows the address space reserved for the Flash module.
Flash structure
Flash module address space
Description
4 Kbyte Test-Flash
Bank 0: 512 Kbyte
program memory
I-BUS interface
IFlash
+
0x0E 0000 to 0x0E FFFF
0x00 0000 to 0x08 FFFF
Control Section
Program/erase
X-BUS interface
Flash control
HV and Ref.
registers
Addresses
controller
generator
+
Internal Flash memory
512 Kbytes
64 Kbytes
Size
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