ST STM32F446 Series - Figure 3. Flash Memory Interface Connection Inside System Architecture; Main Features; Introduction; Embedded Flash Memory Interface

Embedded Flash memory interface RM0390
64/1328 RM0390 Rev 4
3 Embedded Flash memory interface
3.1 Introduction
The Flash memory interface manages CPU AHB I-Code and D-Code accesses to the Flash
memory. It implements the erase and program Flash memory operations and the read and
write protection mechanisms.
The Flash memory interface accelerates code execution with a system of instruction
prefetch and cache lines.
3.2 Main features
• Flash memory read operations
• Flash memory program/erase operations
• Read / write protections
• Prefetch on I-Code
• 64 cache lines of 128 bits on I-Code
• 8 cache lines of 128 bits on D-Code
Figure 3 shows the Flash memory interface connection inside the system architecture.
Figure 3. Flash memory interface connection inside system architecture
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