PM0068

Overview

Doc ID 17100 Rev 2

5/31

1

Overview

1.1

Features

●

Up to 1 Mbytes of Flash memory

●

Dual bank architecture for read-while-write (RWW) capability

–

Bank 1: fixed size of 512 Kbytes

–

Bank 2: up to 512 Kbytes

●

Flash memory interface (FLITF)

–

Read interface with prefetch buffer (2 × 64-bit words) for each bank

–

Option byte loader

–

Flash program/erase operation

–

Read/write protection

–

Low-power mode

1.2

Flash module organization

The Flash memory is divided into an information block and a main memory block containing

512 pages of 2 Kbytes each as shown in Table 1.

An additional memory area contains the Flash memory registers.

Table 1.

XL-density Flash module organization

Block

Name

Base addresses

Size (bytes)

Main memory

Bank 1

Page 0

0x0800 0000 - 0x0800 07FF

2 Kbytes

Page 1

0x0800 0800 - 0x0800 0FFF

2 Kbytes

...

...

...

Page 255

0x0807 F800 - 0x0807 FFFF

2 Kbytes

Bank 2

Page 256

0x0808 0000 - 0x0808 07FF

2 Kbytes

Page 257

0x0808 0800 - 0x0808 0FFF

2 Kbytes

.

.

.

.

.

.

.

.

.

Page 511

0x080F F800 - 0x080F FFFF

2 Kbytes

Information block

System memory

0x1FFF E000 - 0x1FFF F7FF

6 Kbytes

Option bytes

0x1FFF F800 - 0x1FFF F80F

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