ST72260G1 데이터 시트보기 (PDF) - STMicroelectronics

부품명

상세내역

일치하는 목록

ST72260G1

8-BIT MCU WITH FLASH OR ROM MEMORY, ADC, TWO 16-BIT TIMERS, I2C, SPI, SCI INTERFACES

STMicroelectronics 

ST72260G, ST72262G, ST72264G

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 128

bytes of register location, 256 bytes of RAM and

up to 8 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.

The Flash memory contains two sectors (see Fig-

ure 5) mapped in the upper part of the ST7 ad-

dressing space so the reset and interrupt vectors

are located in Sector 0 (F000h-FFFFh).

The size of Flash Sector 0 and other device op-

tions are configurable by Option byte (refer to Sec-

tion 15.1 on page 157).

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

007Fh

0080h

017Fh

0180h

HW Registers

(see Table 2)

RAM

(256 Bytes)

Reserved

DFFFh

E000h

Program Memory

(4K, 8 KBytes)

FFDFh

FFE0h Interrupt & Reset Vectors

FFFFh (see Table 5 on page 32)

0080h

00FFh

0100h

017Fh

Short Addressing RAM

Zero page

(128 Bytes)

Stack or

16-bit Addressing RAM

(128 Bytes)

8K FLASH

PROGRAM MEMORY

E000h

EFFFh

F000h

FFFFh

4 Kbytes

SECTOR 1

4 Kbytes

SECTOR 0

10/171

Share Link: