S912XEG128J2MAA Datasheet, PDF (871/1324 Pages) Freescale Semiconductor, Inc – Microcontrollers

Chapter 24 128 KByte Flash Module (S12XFTM128K2V1)
CAUTION
A P-Flash phrase must be in the erased state before being programmed.
Cumulative programming of bits within a Flash phrase is not allowed.
Table 24-41. Program P-Flash Command FCCOB Requirements
CCOBIX[2:0]
FCCOB Parameters
000
0x06
Global address [22:16] to
identify P-Flash block
001
Global address [15:0] of phrase location to be programmed⁽¹⁾
010
Word 0 program value
011
Word 1 program value
100
Word 2 program value
101
Word 3 program value
1. Global address [2:0] must be 000
Upon clearing CCIF to launch the Program P-Flash command, the Memory Controller will program the
data words to the supplied global address and will then proceed to verify the data words read back as
expected. The CCIF flag will set after the Program P-Flash operation has completed.
Table 24-42. Program P-Flash Command Error Handling
Register
Error Bit
Error Condition
Set if CCOBIX[2:0] != 101 at command launch
ACCERR
Set if command not available in current mode (see Table 24-30)
Set if an invalid global address [22:0] is supplied⁽¹⁾
FSTAT
FPVIOL
MGSTAT1
Set if a misaligned phrase address is supplied (global address [2:0] != 000)
Set if the global address [22:0] points to a protected area
Set if any errors have been encountered during the verify operation⁽²⁾
MGSTAT0
Set if any non-correctable errors have been encountered during the verify
operation²
FERSTAT
EPVIOLIF None
1. As defined by the memory map for FTM256K2.
2. As found in the memory map for FTM256K2.
24.4.2.6 Program Once Command
The Program Once command restricts programming to a reserved 64 byte field (8 phrases) in the
nonvolatile information register located in P-Flash block 0. The Program Once reserved field can be read
using the Read Once command as described in Section 24.4.2.4. The Program Once command must only
be issued once since the nonvolatile information register in P-Flash block 0 cannot be erased. The Program
MC9S12XE-Family Reference Manual Rev. 1.25
Freescale Semiconductor
871