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ST7LITE49M 데이터시트(PDF) 18 Page - STMicroelectronics

부품명 ST7LITE49M
상세설명  8-bit MCU with single voltage Flash memory data EEPROM, ADC, 8/12-bit timers, and I²C interface
PDF  188 Pages
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제조업체  STMICROELECTRONICS [STMicroelectronics]
홈페이지  http://www.st.com
Logo STMICROELECTRONICS - STMicroelectronics

ST7LITE49M 데이터시트(HTML) 18 Page - STMicroelectronics

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Register and memory mapping
ST7LITE49M
18/188
3
Register and memory mapping
As shown in Figure 4, the MCU is capable of addressing 64 Kbytes of memories and I/O
registers.
The available memory locations consist of 128 bytes of register locations, 384 bytes of
RAM, 128 bytes of data EEPROM and 4 Kbytes of Flash program memory. The RAM space
includes up to 128 bytes for the stack from 180h to 1FFh.
The highest address bytes contain the user reset and interrupt vectors.
The Flash memory contains two sectors (see Figure 4) mapped in the upper part of the ST7
addressing space so the reset and interrupt vectors are located in Sector 0 (FFE0h-FFFFh).
The size of Flash Sector 0 and other device options are configurable by option bytes (refer
to Section 14.1 on page 175).
Caution:
Memory locations marked as “Reserved” must never be accessed. Accessing a reserved
area can have unpredictable effects on the device.
Figure 4.
Memory map
0000h
Flash Memory
(4K)
Interrupt & Reset Vectors
HW registers
0080h
007Fh
0FFFh
(seeTable 3)
1000h
107Fh
FFE0h
FFFFh
(see Table 17)
Reserved
Short Addressing
RAM (zero page)
0080h
00FFh
Data EEPROM
(128 bytes)
F000h
1080h
EFFFh
Reserved
FFDFh
128 bytes Stack
0100h
017Fh
1 Kbyte
3 Kbytes
(SECTOR 1)
(SECTOR 0)
4K Flash
program memory
DEE0h
RCCRH1
RCCRL1
see Section 7.1.1
01FFh
0200h
RAM
RAM
(384 bytes)
0180h
01FFh
DEE1h
DEE2h
RCCRH0
RCCRL0
DEE3h
FFFFh
F000h



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