ST7261 datasheet(8/80 Pages) STMICROELECTRONICS

部件名	ST7261

功能描述	LOW SPEED USB 8-BIT MCU WITH 3 ENDPOINTS, ROM MEMORY, LVD, WDG, TIMER

PDF	80 Pages

Scroll/Zoom	100%

制造商	STMICROELECTRONICS [STMicroelectronics]

网页	http://www.st.com

标志

8 / 80 page

ST7261

8/80

3 REGISTER & MEMORY MAP

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

addressing 64K bytes of memories and I/O regis-

ters.

The available memory locations consist of 64

bytes of register locations, 256 bytes of RAM and

4 Kbytes 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 marked as “Re-

served” must never be accessed. Accessing a re-

seved area can have unpredictable effects on the

device.

Figure 5. Memory Map

0000h

Program Memory

Interrupt & Reset Vectors

HW Registers

0040h

003Fh

(see Table 2)

FFDFh

FFE0h

FFFFh

See Table 5 on page 21

0180h

Reserved

017Fh

Short Addressing RAM

Zero page

017Fh

0080h

00FFh

(4 KBytes)

F000h

(128 Bytes)

256 Bytes RAM

Stack or

(128 Bytes)

EFFFh

16-bit Addressing RAM

Reserved

0080h

007Fh

ST7261 数据表(PDF) 8 Page - STMicroelectronics

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