MMCCMB2107 Freescale, MMCCMB2107 Datasheet - Page 180

• Manufacturer Part Number: MMCCMB2107
• Manufacturer: Freescale

Specifications of MMCCMB2107

• Lead Free Status / RoHS Status: Not Compliant

Non-Volatile Memory FLASH (CMFR)
9.2 Introduction
Technical Data
180
9.8.5
9.8.5.1
9.8.5.2
9.8.5.3
9.8.6
9.8.7
9.9
9.10
This section describes the operation of the embedded FLASH memory.
The FLASH memory can be read, programmed, and erased from a
single external programming voltage supply, V
erase operations are enabled through the use of an internal charge
pump.
The CDR MoneT FLASH uses the Motorola one-transistor bitcell
(MoneT). The 128-Kbyte CMFR array is divided into 16-Kbyte
(16,384 bytes) array blocks. The CMFR array size is created by using
eight array blocks.
The primary function of the CMFR is to serve as electrically
programmable and erasable NVM to store program instructions and/or
data. It is a class of nonvolatile solid state silicon memory device
consisting of an array of isolated elements, a means for selectively
adding and removing charge to the elements electrically and a means of
selectively sensing the stored charge in the elements. When power is
removed from the device, the stored charge of the isolated elements are
retained.
The CMFR is arranged into two major sections as shown in
The first section is the MoneT array used to store system program and
data. The second section is the bus interface unit (BIU) that controls
access and operation of the CMFR array.
Freescale Semiconductor, Inc.
For More Information On This Product,
Master Reset . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .220
Interrupts. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 220
Non-Volatile Memory FLASH (CMFR)
Erasing . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 214
Erase Pulse Amplitude and Width Modulation . . . . . . . . . . 219
Emulation Operation. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 220
Erase Sequence . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 215
Erase Margin Reads . . . . . . . . . . . . . . . . . . . . . . . . . . . 218
Erasing Shadow Information Words. . . . . . . . . . . . . . . . 219
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. The program and
MMC2107 – Rev. 2.0
Figure
MOTOROLA
9-1.