sam3s16 ATMEL Corporation, sam3s16 Datasheet - Page 26

• Manufacturer Part Number: sam3s16
• Description: At91sam Arm-based Flash Mcu
• Manufacturer: ATMEL Corporation

9.1.3.2
9.1.3.3
9.1.3.4
26
SAM3S16 Preliminary
Flash Power Supply
Enhanced Embedded Flash Controller
Flash Speed
Figure 9-3.
Erasing the memory can be performed as follows:
The Flash is supplied by VDDCORE and VDDIO.
The Enhanced Embedded Flash Controller (EEFC) manages accesses performed by the mas-
ters of the system. It enables reading the Flash and writing the write buffer. It also contains a
User Interface, mapped on the APB.
The Enhanced Embedded Flash Controller ensures the interface of the Flash block with the 32-
bit internal bus. Its 128-bit wide memory interface increases performance.
The user can choose between high performance or lower current consumption by selecting
either 128-bit or 64-bit access. It also manages the programming, erasing, locking and unlocking
sequences of the Flash using a full set of commands.
One of the commands returns the embedded Flash descriptor definition that informs the system
about the Flash organization, thus making the software generic.
The user needs to set the number of wait states depending on the frequency used.
For more details, refer to the AC Characteristics sub section in the product Electrical Character-
istics Section.
• on a 512-byte page inside a sector, of 8 KBytes
• on a 4-Kbyte Block inside a sector of 8 KBytes/48 Kbytes/64 KBytes
• on a sector of 8 KBytes/48 KBytes/64 KBytes
• on chip
Flash Size
Flash 1 MByte
15 * 64 KBytes
1 * 48 KBytes
2 * 8 KBytes
11117AS–ATARM–12-Jul-11