sam4s8c ATMEL Corporation, sam4s8c Datasheet - Page 31
sam4s8c
Manufacturer Part Number
sam4s8c
Description
At91sam Arm-based Flash Mcu
Manufacturer
ATMEL Corporation
Datasheet
1.SAM4S8C.pdf
(64 pages)
- Current page: 31 of 64
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9. Memories
9.1
9.1.1
9.1.2
9.1.3
9.1.3.1
11100AS–ATARM–27-Oct-11
Embedded Memories
Internal SRAM
Internal ROM
Embedded Flash
Flash Overview
The SAM4S16 device (1024 Kbytes) embeds a total of 128-Kbytes high-speed SRAM.
The SAM4S8 device (512 Kbytes) embeds a total of 128-Kbytes high-speed SRAM.
The SRAM is accessible over System Cortex-M4 bus at address 0x2000 0000.
The SRAM is in the bit band region. The bit band alias region is from 0x2200 0000 to
0x23FF FFFF.
The SAM4S embeds an Internal ROM, which contains the SAM Boot Assistant (SAM-BA
Application Programming routines (IAP) and Fast Flash Programming Interface (FFPI).
At any time, the ROM is mapped at address 0x0080 0000.
The memory is organized in sectors. Each sector has a size of 64 KBytes. The first sector of 64
KBytes is divided into 3 smaller sectors.
The three smaller sectors are organized to consist of 2 sectors of 8 KBytes and 1 sector of 48
KBytes. Refer to
Figure 9-1.
Each Sector is organized in pages of 512 Bytes.
Global Flash Organization
Figure 9-1, "Global Flash Organization"
Sector size
48 KBytes
64 KBytes
64 KBytes
8 KBytes
8 KBytes
Sector name
Small Sector 0
Small Sector 1
Larger Sector
Sector 1
Sector n
below.
Sector 0
®
), In
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