ST723242 datasheet(13/161 Pages) STMICROELECTRONICS

部件名	ST723242

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

PDF	161 Pages

Scroll/Zoom	100%

制造商	STMICROELECTRONICS [STMicroelectronics]

网页	http://www.st.com

标志

13 / 161 page

ST72324

13/161

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.

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

RAM

Program Memory

(32K, 16K or 8K)

Interrupt & Reset Vectors

HW Registers

0080h

007Fh

0FFFh

(see Table 2)

1000h

FFDFh

FFE0h

FFFFh

(see Table 7)

0880h

Reserved

087Fh

Short Addressing

RAM (zero page)

256 Bytes Stack

16-bit Addressing

RAM

0100h

01FFh

027Fh

0080h

0200h

00FFh

32 KBytes

8000h

FFFFh

(1024,

or 047Fh

16 KBytes

C000h

512 or 384 Bytes)

8 Kbytes

E000h

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