參數(shù)資料
型號： ST7FLU05MAE
廠商： STMICROELECTRONICS
元件分類： 微控制器/微處理器
英文描述： 8-BIT, FLASH, 8 MHz, MICROCONTROLLER, PDSO8
封裝： 0.150 INCH, LEAD FREE, PLASTIC, SOP-8
文件頁數(shù)： 31/124頁
文件大?。?/td> 2186K
代理商： ST7FLU05MAE
Obsolete
Product(s)
- Obsolete
Product(s)
Register and memory map
ST7LUS5, ST7LU05, ST7LU09
14/124
3
Register and memory map
As shown in Figure 6 and Figure 8, 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, 128 bytes of RAM and 1 Kbyte
or 2 Kbytes of user program memory. The RAM space includes up to 64 bytes for the stack from 00C0h
to 00FFh.
The highest address bytes contain the user reset and interrupt vectors.
The Flash memory contains two sectors (see Figure 6 and Figure 8) mapped in the upper part of the ST7
addressing space whereas the reset and interrupt vectors are located in Sector 0 (FE00h-FFFFh for the
ST7LUS5 and FA01h-FFFFh for the ST7LU05/ST7LU09).
The size of Flash sector 0 and other device options are configurable by the option bytes.
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 (ST7LUS5)
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 addresses.
2.
Size configurable by option byte
0000h
RAM
Flash memory
(1 Kbyte)
Interrupt and reset vectors
HW registers
0080h
007Fh
(see Table 3)
FFE0h
FFFFh
(see Table 15)
0100h
00FFh
Short addressing
RAM (zero page)
64-byte stack
00FFh
0080h
00C0h
(128 bytes)
FC00h
FBFFh
Reserved
FFDFh
0.5 to 1 Kbytes
0 to 0.5 Kbytes
sector 1
sector 0(2)
1Kbyte Flash
FFFFh
FE00h
FDFFh
FC00h
Program Memory
DEE0h(1)
RCCRH0
RCCRL0
DEE1h(1)
See also Section 6.1 on page 31
RCCRH1
RCCRL1
DEE2h(1)
DEE3h(1)
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