ST72325_07 Datasheet, PDF (17/196 Pages) STMicroelectronics – 8-bit MCU with 16 to 60K Flash/ROM, ADC, CSS, 5 timers, SPI, SCI, I2C interface

3 REGISTER & MEMORY MAP
As shown in Figure 6, 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, up to 2Kbytes of RAM
and up to 60Kbytes 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.
Figure 6. Memory Map
IMPORTANT: Memory locations marked as “Re-
served” must never be accessed. Accessing a re-
seved area can have unpredictable effects on the
device.
Related Documentation
AN 985: Executing Code in ST7 RAM
0000h
007Fh
0080h
HW Registers
(see Table 4)
087Fh
0880h
0FFFh
1000h
FFDFh
FFE0h
FFFFh
RAM
(2048, 1536, 1024,
or 512 Bytes)
Reserved
Program Memory
(60,48, 32 or 16K)
Interrupt & Reset Vectors
(see Table 9)
0080h
00FFh
0100h
01FFh
0200h
027Fh
or 047Fh
or 067Fh
or 087Fh
Short Addressing
RAM (zero page)
256 Bytes Stack
16-bit Addressing
RAM
1000h
4000h
60 KBytes
48 KBytes
8000h
32 KBytes
C000h
16 KBytes
FFFFh
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