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ST7L15 数据表(PDF) 7 Page - STMicroelectronics

部件名 ST7L15
功能描述  8-bit MCU for automotive with single voltage Flash/ROM memory, data EEPROM, ADC, 5 timers, SPI
Download  138 Pages
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制造商  STMICROELECTRONICS [STMicroelectronics]
网页  http://www.st.com
标志 STMICROELECTRONICS - STMicroelectronics

ST7L15 数据表(HTML) 7 Page - STMicroelectronics

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3 REGISTER AND MEMORY MAP
As shown in Figure 3, the MCU can address
64 Kbytes of memories and I/O registers.
The available memory locations consist of 128
bytes of register locations, 256 bytes of RAM, 128
bytes of data EEPROM and up to 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 Fig-
ure 3) mapped in the upper part of the ST7 ad-
dressing space so the reset and interrupt vectors
are located in Sector 0 (F000h-FFFFh).
The size of Flash Sector 0 and other device op-
tions are configurable by Option byte (refer to sec-
tion 15.1 on page 126).
IMPORTANT: Memory locations marked as “Re-
served” must never be accessed. Accessing a re-
served area can have unpredictable effects on the
device.
Figure 3. Memory Map
Notes:
1. DEE0h, DEE1h, DEE2h and DEE3h addresses are located in a reserved area but are special bytes containing also the
RC calibration values which are read-accessible only in user mode. If all the EEPROM data or Flash space (including the
RC calibration values locations) has been erased (after the readout protection removal), then the RC calibration values
can still be obtained through these four addresses.
0000h
RAM
Flash Memory
(4K)
Interrupt and Reset Vectors
HW Registers
0080h
007Fh
0FFFh
(see Table 2)
1000h
107Fh
FFE0h
FFFFh
(see Table 5)
0180h
Reserved
017Fh
Short Addressing
RAM (zero page)
0080h
00FFh
(128 bytes)
Data EEPROM
(128 bytes)
F000h
1080h
EFFFh
Reserved
FFDFh
128 bytes Stack
0100h
017Fh
1 Kbyte
3 Kbytes
(SECTOR 1)
(SECTOR 0)
4K FLASH
FFFFh
FC00h
FBFFh
F000h
PROGRAM MEMORY
DEE0h
RCCRH1
RCCRL1
See section 7.1 on page 21
and note 1.
00FFh
01FFh
0100h
Reserved
RAM
(128 bytes)
Reserved
0200h
0180h
01FFh
DEE1h
DEE2h
RCCRH0
RCCRL0
DEE3h
1


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