ST72124J View Datasheet(PDF) - STMicroelectronics

Part Name

Description

MFG CO.

ST72124J

8-BIT MCU WITH SINGLE VOLTAGE FLASH MEMORY, ADC, 16-BIT TIMERS, SPI, SCI INTERFACES

STMicroelectronics 

Prev 11 12 13 14 15 16 17 18 19 20 Next

ST72334J/N, ST72314J/N, ST72124J

2.3 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 128

bytes of register locations, 384 or 512 bytes of

RAM, up to 256 bytes of data EEPROM and 4 or

Figure 5. Memory Map

8 Kbytes 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.

0000h

007Fh

0080h

01FFh

HW Registers

(see Table 2)

384 Bytes RAM

027Fh

512 Bytes RAM

0200h / 0280h

0BFFh

0C00h

0CFFh

0D00h

BFFFh

C000h

E000h

FFD Fh

Reserved

256 Bytes Data EEPROM

Reserved

8K Bytes

Program

Memory

16K Bytes

Program

Memory

FFE0 h

Interrupt & Reset Vectors

(see Table 6 page 37)

FFFFh

0080h

00FFh

Short Addressing

RAM (zero page)

0100h 256 Bytes Stack or

01FFh 16-bit Addressing RAM

0080h

00FFh

Short Addressing

RAM (zero page)

0100h

256 Bytes Stack or

16-bit Addressing RAM

01FFh

0200h

027Fh

16-bit Addressing

RAM

12/125

Share Link: