MC68HC908KX2 MOTOROLA [Motorola, Inc], MC68HC908KX2 Datasheet - Page 298

• Manufacturer Part Number: MC68HC908KX2
• Description: Microcontrollers
• Manufacturer: MOTOROLA [Motorola, Inc]

MC68HC08KX8 Overview
B.2 Introduction
B.3 FLASH x ROM Module Changes
Technical Data
298
This appendix describes the differences between the read-only memory
(ROM) version (MC68HC08KX8) and the FLASH version
(MC68HC908KX8) of the microcontroller.
Basically, the differences are:
This section describes changes between the FLASH and ROM modules.
FLASH memory and FLASH supporting modules are replaced by ROM
memory, see
FLASH vector space are respectively substituted by user ROM and user
ROM vector space.
Additionally, these modules and registers have been eliminated in the
ROM version:
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– FLASH for ROM substitution
– Partial use of FLASH-related module
Configuration register programming
Wider range of operating voltage
FLASH burn-in ROM module — Auxiliary FLASH routine codes
FLASH charge pump module — High-voltage for FLASH
programming
MENRST module — Helps erased FLASH parts programming,
see
SIM reset status register, bit 2 — Refers to MENRST. See
SIM Reset Status
ROM version and reading this bit will return 0.
FLASH test control register, FLTCR
FLASH control register, FLCR
FLASH block protect register, FLBPR
FLASH x ROM module changes
6.4.1.5 Forced Monitor Mode Entry Reset (MENRST)
MC68HC08KX8 Overview
Figure
MC68HC908KX8 • MC68HC908KX2 • MC68HC08KX8 — Rev. 1.0
B-1. In
Register. MENRST has no function in the
Figure
B-1, the user FLASH and user
MOTOROLA
6.8.1