ST72621L4M1(2002) 查看數據表（PDF） - STMicroelectronics

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ST72621L4M1
(Rev.:2002)

LOW SPEED USB 8-BIT MCU WITH 3 ENDPOINTS, FLASH OR ROM MEMORY, LVD, WDG, 10-BIT ADC, 2 TIMERS, SCI, SPI

STMicroelectronics 

ST7262

3 REGISTER & MEMORY MAP

As shown in the Figure 7, 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, 768 bytes of RAM and

Figure 7. Memory Map

0000h

003Fh

0040h

HW Registers

(see Table 2)

384 Bytes RAM

768 Bytes RAM

033Fh

0340h

BFFFh

C000h

E000h

Reserved

Program Memory

16 KBytes

8 KBytes

FFDFh

FFE0h

Interrupt & Reset Vectors

(see Table 6)

FFFFh

up to 16 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.

0040h

00FFh

017Fh

01BFh

Short Addressing

RAM (zero page)

192 Bytes

16-bit Addressing

RAM

or Stack

(128 Bytes)

16-bit Addressing

RAM

64 Bytes

0040h

00FFh

017Fh

033Fh

Short Addressing

RAM (zero page)

192 Bytes

16-bit Addressing

RAM

or Stack

(128 Bytes)

16-bit Addressing

RAM

448 Bytes

11/133

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