ST7MC1 datasheet(16/308 Pages) STMICROELECTRONICS

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ST7MC1/ST7MC2

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3 REGISTER & MEMORY MAP

As shown in Figure 8, the MCU is capable of ad-

dressing 64K bytes of memories and I/O registers.

The available memory locations consist of 128

bytes of register locations, up to 2Kbytes of RAM

and up to 60Kbytes of user program memory. The

RAM space includes up to 256 bytes for the stack

from 0100h to 01FFh.

The highest address bytes contain the user reset

and interrupt vectors.

IMPORTANT: Memory locations marked as “Re-

served” must never be accessed. Accessing a re-

served area can have unpredictable effects on the

device.

Figure 8. Memory Map

As shown in Figure 9, the MCU is capable of ad-

dressing 64K bytes of memories and I/O registers.

The available memory locations consist of 128

bytes of register locations, up to 1536 bytes of

RAM and up to 60 Kbytes of user program memo-

ry. The RAM space includes up to 256 bytes for

the stack from 0100h to 01FFh.

The highest address bytes contain the user reset

and interrupt vectors.

0000h

RAM

Program Memory

(60K, 48K, 32K, 16K, 8K)

Interrupt & Reset Vectors

HW Registers

0080h

007Fh

0FFFh

(see Table 2)

1000h

FFDFh

FFE0h

FFFFh

(see Table 8)

0680h

Reserved

067Fh

Short Addressing

RAM (zero page)

256 Bytes Stack

16-bit Addressing

RAM

0100h

01FFh

0080h

0200h

00FFh

1000h

32 KBytes

60 KBytes

FFFFh

8000h

(1536/1024

or 047Fh

8 KBytes

E000h

768/384 Bytes)

or 037Fh

or 067Fh

16 KBytes

C000h

48 KBytes

4000h

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