ST7SCR datasheet(11/102 Pages) STMICROELECTRONICS

Part #	ST7SCR

Description	8-BIT LOW-POWER, FULL-SPEED USB MCU WITH 16K FLASH, 768 RAM, SMARTCARD I/F, TIMER

PDF	102 Pages

Scroll/Zoom	100%

Manufacturer	STMICROELECTRONICS [STMicroelectronics]

Direct Link	http://www.st.com

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11 / 102 page

ST7SCR

11/102

3 REGISTER & MEMORY MAP

As shown in Figure 5, the MCU is capable of ad-

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

The available memory locations consist of 40

bytes of register locations, up to 512 bytes of RAM

and up to 16K bytes of user program memory. The

RAM space includes up to 128 bytes for the stack

from 0100h to 017Fh.

The highest address bytes contain the user reset

and interrupt vectors.

IMPORTANT:

Memory

locations

noted

“Re-

served” must never be accessed. Accessing a re-

served area can have unpredictable effects on the

device.

Figure 5. Memory Map

0000h

Interrupt & Reset Vectors

HW Registers

0040h

003Fh

(see Table 2)

FFDFh

FFE0h

FFFFh

(see Table 7)

C000h

033Fh

Program Memory

RAM

USB RAM

(16K Bytes)

Short Addressing

Stack (128 Bytes)

0100h

0180h

023Fh

0040h

00FFh

017Fh

16-bit Addressing RAM

RAM (192 Bytes)

( 192 Bytes)

023Fh

0240h

256 Bytes

(512 Bytes)

Unused

ST7SCR Datasheet(PDF) 11 Page - STMicroelectronics

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