ST92F250CV2 View Datasheet(PDF) - STMicroelectronics

Part Name

Description

Manufacturer

ST92F250CV2

8/16-bit single voltage Flash MCU family with RAM, E³ TM (emulated EEPROM), CAN 2.0B and J1850 BLPD

STMicroelectronics 

ST92F124xx/ST92F150Cxx/ST92F150JDV1/ST92F250CV2

Device architecture

Register Group: E (System)

Reset value: undefined

7

SSP7

SSP6

SSP5

SSP4

Figure 25. External stack mode

SSP3

SSP2

REGISTER

FILE

F

E

STACK POINTER (LOW)

&

STACK POINTER (HIGH)

point to:

MEMORY

D

SSP1

0

SSP0

STACK

4

3

2

1

0

6.4

Memory organization

Code and data are accessed within the same linear address space. All of the physically

separate memory areas, including the internal ROM, internal RAM and external memory are

mapped in a common address space.

The ST9 provides a total addressable memory space of 4 Mbytes. This address space is

arranged as 64 segments of 64 Kbytes; each segment is again subdivided into four 16-

Kbyte pages.

The mapping of the various memory areas (internal RAM or ROM, external memory) differs

from device to device. Each 64-Kbyte physical memory segment is mapped either internally

or externally; if the memory is internal and smaller than 64 Kbytes, the remaining locations

in the 64-Kbyte segment are not used (reserved).

Refer to the Register and Memory Map Chapter for more details on the memory map.

Doc ID 8848 Rev 7

65/523

Share Link: