參數(shù)資料
型號: ST72124J2T
廠商: 意法半導體
英文描述: 8-BIT MCU WITH SINGLE VOLTAGE FLASH MEMORY, ADC, 16-BIT TIMERS, SPI, SCI INTERFACES
中文描述: 8位單電壓閃存,ADC和16位定時器,SPI和脊髓損傷界面微控制器
文件頁數(shù): 13/153頁
文件大小: 1533K
代理商: ST72124J2T
ST72334J/N, ST72314J/N, ST72124J
13/153
4 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
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.
IMPORTANT:
Memory locations marked as “Re-
served” must never be accessed. Accessing a re-
served area can have unpredictable effects on the
device.
Figure 5. Memory Map
0000h
Interrupt & Reset Vectors
(see
Table 5 on page 34
)
HW Registers
(see
Table 2
)
027Fh
0080h
16-bit Addressing
RAM
007Fh
0200h / 0280h
0BFFh
0C00h
Reserved
0080h
FFDFh
FFE0h
FFFFh
027Fh
C000h
Reserved
256 Bytes Data EEPROM
0CFFh
0D00h
BFFFh
00FFh
0100h
01FFh
0200h
8K Bytes
Program
Memory
E000h
16K Bytes
Program
Memory
Short Addressing RAM
Zero page
(128 Bytes)
0080h
00FFh
0100h
01FFh
01FFh
384 Bytes RAM
512 Bytes RAM
Stack or
16-bit Addressing RAM
(256 Bytes)
8 KBytes
E000h
C000h
16 KBytes
FFFFh
Short Addressing RAM
Zero page
(128 Bytes)
Stack or
16-bit Addressing RAM
(256 Bytes)
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