ST72324J2BC View Datasheet(PDF) - STMicroelectronics

Part Name

Description

Manufacturer

ST72324J2BC

8-BIT MCU WITH NESTED INTERRUPTS, FLASH, 10-BIT ADC, 4 TIMERS, SPI, SCI INTERFACE

STMicroelectronics 

ST72324

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 locations, up to 1024 bytes of

RAM and up to 32 Kbytes of user program memo-

ry. The RAM space includes up to 256 bytes for

the stack from 0100h to 01FFh.

Figure 5. Memory Map

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.

0000h

007Fh

0080h

HW Registers

(see Table 2)

087Fh

0880h

0FFFh

1000h

FFDFh

FFE0h

FFFFh

RAM

(1024,

512 or 384 Bytes)

Reserved

Program Memory

(32K, 16K or 8K)

Interrupt & Reset Vectors

(see Table 7)

0080h

00FFh

0100h

01FFh

0200h

027Fh

or 047Fh

Short Addressing

RAM (zero page)

256 Bytes Stack

16-bit Addressing

RAM

8000h

C000h

E000h

FFFFh

32 KBytes

16 KBytes

8 Kbytes

13/161

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