MMC2114 MOTOROLA [Motorola, Inc], MMC2114 Datasheet - Page 210

• Manufacturer Part Number: MMC2114
• Description: M CORE Microcontrollers
• Manufacturer: MOTOROLA [Motorola, Inc]

Second Generation FLASH for M•CORE (SGFM)
Advance Information
210
The SGFM module has hardware interlocks to protect data from
accidental corruption. The SGFM memory array is logically divided into
8-Kbyte sectors for the purpose of data protection and access control. A
flexible scheme allows the protection of any combination of logical
sectors (see
mechanism is available to control supervisor/user and program/data
space access to these sectors.
The SGFM configuration field comprises 44 bytes of reserved array
memory space that determines the module protection and access
restrictions out of reset. Data to secure the FLASH from unauthorized
access is also stored in the SGFM configuration field.
describes each byte used in this field.
The SGFM module also contains a set of control and status registers.
The memory map for these registers and their accessibility in supervisor
and user modes is shown in
The SGFM module contains one to four sets of banked registers
depending on the size of the array. The active register bank is selected
via the BKSEL field in the unbanked Module Configuration Register
(SGFMCR). Each set of banked registers controls the operation of two
interleaving FLASH physical blocks such that Block 0L and Block 0H are
controlled with one register bank. Other blocks are controlled in a similar
fashion as shown in
Freescale Semiconductor, Inc.
Second Generation FLASH for M•CORE (SGFM)
For More Information On This Product,
Go to: www.freescale.com
10.7.2.1 SGFM Protection
Figure
10-2.
Table
MMC2114 • MMC2113 • MMC2112 — Rev. 1.0
10-2.
Register). A similar
Table 10-1
MOTOROLA