MMC2107 Datasheet, PDF (191/618 Pages) –

MMC2107 – Rev. 2.0
MOTOROLA
Freescale Semiconductor, Inc.
Non-Volatile Memory FLASH (CMFR)
Registers and Memory Map
RSVD24 — Reserved
Writing to this read/write bit updates the value but has no effect on
functionality.
SUPV[7:0] — Supervisor Space Field
The read-always SUPV[7:0] field controls supervisor/unrestricted
address space assignment of array blocks. The field is writable when
the LOCKCTL bit is clear.
Array blocks that correspond to 1s in SUPV[7:0] are selected for data
address space.
Each array block can be mapped into supervisor or unrestricted
address space. When an array block is mapped into supervisor
address space (SUPV[M] = 1) only supervisor accesses are allowed.
A user access to a location in supervisor address space causes a
data error exception. When an array block is mapped into unrestricted
address space (SUPV[M] = 0) both supervisor and user accesses are
allowed.
The default reset state of SUPV[7:0] bits are supervisor address
space (SUPV[M] = 1).
1 = Array block in supervisor address space
0 = Array block in unrestricted address space
DATA[7:0] — Data Space Field
The read-always DATA[7:0] field controls data/program address
space assignment of array blocks. When LOCKCTL = 1, the
DATA[7:0] field is write-protected, and writing to it has no effect.
Array blocks that correspond to 1s in DATA[7:0] are selected for data
address space.
Each array block can be mapped into data address space or both data
and program address space. When an array block is mapped into
data address space (DATA[M] = 1) only data accesses are allowed.
A program access to a location in data address space causes a data
error exception. When an array block is mapped into both data and
program address space (DATA[M] = 0) both data and program
accesses are allowed.
The default reset state of DATA[7:0] bits are data and program
address space (DATA[M] = 0).
1 = Array block in data address space
0 = Array block is both data and program address space
Non-Volatile Memory FLASH (CMFR)
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Technical Data
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