ST7FOXK2 datasheet(20/226 Pages) STMICROELECTRONICS

20 / 226 page

ST7FOXF1, ST7FOXK1, ST7FOXK2

20/226

As shown in Figure 5, the MCU is capable of addressing 64 Kbytes of memories and I/O

registers.

The available memory locations consist of 128 bytes of register locations, 384 bytes of RAM

and 4 to 8 Kbytes of Flash program memory. The RAM space includes up to 128 bytes for

the stack from 180h to 1FFh.

The highest address bytes contain the user reset and interrupt vectors.

The Flash memory contains two sectors (see Figure 5) mapped in the upper part of the ST7

addressing space so the reset and interrupt vectors are located in Sector 0 (FFE0h-FFFFh).

The size of Flash Sector 0 and other device options are configurable by option bytes (refer

to Section 13.1 on page 211).

Caution:

Memory locations marked as “Reserved” must never be accessed. Accessing a reserved

area can have unpredictable effects on the device.

Figure 5.

ST7FOXF1/ST7FOXK1/ST7FOXK2 memory map

0000h

Flash Memory

Interrupt & Reset Vectors

HW registers

0080h

007Fh

(seeTable 8)

FFE0h

FFFFh

(see Table 17)

Reserved

Short Addressing

RAM (zero page)

0080h

00FFh

E000h

DFFFh

FFDFh

128 bytes Stack

0100h

017Fh

8 or 4 Kbytes

DEE0h

see Section 6.1.1

01FFh

0200h

RAM

(384 bytes)

0180h

01FFh

DEE1h

RCCRH

RCCRL

E000h

(4 Kbytes)

(8 Kbytes)

F000h

EFFFh

F800h

F7FFh

Flash program memory

(4 Kbytes)

Sector 1

Sector 0

(2 Kbytes)

(1 Kbyte)

(0.5 Kbyte)

FFFFh

1000h

1001h

Reserved

RCCRH_USER

RCCRL_USER

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