MC68HC05V12 Datasheet, PDF (40/246 Pages) Freescale Semiconductor, Inc – HCMOS Microcontreller Unit

Memory Map
Freescale Semiconductor, Inc.
2.4 RAM
The total RAM consists of 384 bytes (including the stack). The stack
begins at address $00FF and proceeds down to $00C0 (64 bytes). Using
the stack area for data storage or temporary work locations requires care
to prevent it from being overwritten due to stacking from an interrupt or
subroutine call.
NOTE:
The stack is located in the middle of the RAM address space. Data
written to addresses within the stack address range can be overwritten
during stack activity.
2.5 Boot ROM
The boot ROM space in the MC68HC05V12 consists of 1008 bytes
including EEPROM test code, burn-in code, and 16 bytes of bootloader
vectors.
2.6 USER ROM
There are 12,032 bytes of user ROM and 16 bytes of ROM for user
vectors and the computer operating properly (COP) update location.
2.7 EEPROM
This device contains 256 bytes of EEPROM. Programming the
EEPROM is performed by the user on a single-byte basis by
manipulating the programming register located at address $001C. Refer
to Section 12. EEPROM for programming details.
Technical Data
Memory Map
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MC68HC05V12 — Rev. 2.0