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ST7DALI Datasheet(PDF) 9 Page - STMicroelectronics

Part No. ST7DALI
Description  8-BIT MCU WITH SINGLE VOLTAGE FLASH MEMORY, DATA EEPROM, ADC, TIMERS, SPI, DALI
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Maker  STMICROELECTRONICS [STMicroelectronics]
Homepage  http://www.st.com
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ST7DALI
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3 REGISTER & MEMORY MAP
As shown in Figure 3, 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, 384 bytes of RAM, 256
bytes of data EEPROM and 8 Kbytes of user pro-
gram 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 130).
IMPORTANT: Memory locations marked as ā€œRe-
servedā€ must never be accessed. Accessing a re-
seved area can have unpredictable effects on the
device.l
Figure 3. Memory Map
0000h
RAM
Flash Memory
(8K)
Interrupt & Reset Vectors
HW Registers
0080h
007Fh
0FFFh
(see Table 2)
1000h
10FFh
FFE0h
FFFFh
(see Table 5)
0200h
Reserved
01FFh
Short Addressing
RAM (zero page)
128 Bytes Stack
0180h
01FFh
0080h
00FFh
(384 Bytes)
Data EEPROM
(256 Bytes)
E000h
1100h
DFFFh
Reserved
FFDFh
16-bit Addressing
RAM
0100h
017Fh
1 Kbyte
7 Kbytes
SECTOR 1
SECTOR 0
8K FLASH
FFFFh
FC00h
FBFFh
E000h
PROGRAM MEMORY
1000h
1001h
RCCR0
RCCR1
see section 7.1 on page 23
FFDEh
FFDFh
RCCR0
RCCR1
see section 7.1 on page 23
1




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