Information

28.4.12.14.1 Swap State Determination

During the reset sequence, the state of the swap system is determined by evaluating the

IFR Swap Field in the program flash 1 IFR and the swap indicators located in each of the

program flash blocks at the swap indicator address stored in the IFR Swap Field.

Table 28-68. Program Flash 1 IFR Swap Field

Address Range Size (Bytes) Field Description

0x00 – 0x01 2 Swap Enable Word

0x02 – 0x03 2 Swap Indicator Address

0x04 – 0xFF 252 Reserved

28.4.12.15 Program Partition Command

The Program Partition command prepares the FlexNVM block for use as data flash,

EEPROM backup, or a combination of both and initializes the FlexRAM. The Program

Partition command must not be launched from flash memory, since flash memory

resources are not accessible during Program Partition command execution.

CAUTION

While different partitions of the FlexNVM are available, the

intention is that a single partition choice is used throughout the

entire lifetime of a given application. The FlexNVM Partition

Code choices affect the endurance and data retention

characteristics of the device.

Table 28-69. Program Partition Command FCCOB Requirements

FCCOB Number FCCOB Contents [7:0]

0 0x80 (PGMPART)

1 Not Used

2 Not Used

3 Not Used

4 EEPROM Data Size Code

5 FlexNVM Partition Code

1. See Table 28-70 and EEPROM Data Set Size

2. See Table 28-71 and

Chapter 28 Flash Memory Module (FTFL)

K10 Sub-Family Reference Manual, Rev. 6, Nov 2011

Freescale Semiconductor, Inc. 669