Embedded Flash Memory; Table 4. Flash Module Organization (Low-Density Devices) - ST STM32F101 series Reference Manual

Memory and bus architecture
3.3.3

Embedded Flash memory

The high-performance Flash memory module has the following key features:
•
For XL-density devices: density of up to 1 Mbyte with dual bank architecture for read-
while-write (RWW) capability:
–
–
•
For other devices: density of up to 512 Kbytes
•
Memory organization: the Flash memory is organized as a main block and an
information block:
–
–
The Flash memory interface (FLITF) features:
•
Read interface with prefetch buffer (2x64-bit words)
•
Option byte Loader
•
Flash Program / Erase operation
•
Read / Write protection
Block
Main memory
55/1128
bank 1: fixed size of 512 Kbytes
bank 2: up to 512 Kbytes
Main memory block of size:
up to 128 Kbytes × 64 bits divided into 512 pages of 2 Kbytes each (see
for XL-density devices
up to 4 Kb × 64 bits divided into 32 pages of 1 Kbyte each for low-density devices
(see Table 4)
up to 16 Kb × 64 bits divided into 128 pages of 1 Kbyte each for medium-density
devices (see Table 5)
up to 64 Kb × 64 bits divided into 256 pages of 2 Kbytes each (see
high-density devices
up to 32 Kbit × 64 bits divided into 128 pages of 2 Kbytes each (see
connectivity line devices
Information block of size:
770 × 64 bits for XL-density devices (see
2360 × 64 bits for connectivity line devices (see
258 × 64 bits for other devices (see

Table 4. Flash module organization (low-density devices)

Name
Page 0
Page 1
Page 2
Page 3
Page 4
Page 31
DocID13902 Rev 15
Table
Table 4,
0x0800 0000 - 0x0800 03FF
0x0800 0400 - 0x0800 07FF
0x0800 0800 - 0x0800 0BFF
0x0800 0C00 - 0x0800 0FFF
0x0800 1000 - 0x0800 13FF
.
.
.
0x0800 7C00 - 0x0800 7FFF
8)
Table 7)
Table 5 and Table 6)
Base addresses
.
.
.
RM0008
Table 8)
Table 6) for
Table 7) for
Size (bytes)
1 Kbyte
1 Kbyte
1 Kbyte
1 Kbyte
1 Kbyte
.
.
.
1 Kbyte