Freescale Semiconductor MC9S12ZVHL32, Reference Manual

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Chapter 21 64 KB Flash Module (S12ZFTMRZ64K2KV2)
S12ZVHY/S12ZVHL Family Reference Manual Rev. 1.05
Freescale Semiconductor 725
Upon clearing CCIF to launch the Read Once command, a Read Once phrase is fetched and stored in the
FCCOB indexed register. The CCIF flag will set after the Read Once operation has completed. Valid
phrase index values for the Read Once command range from 0x0000 to 0x0007. During execution of the
Read Once command, any attempt to read addresses within P-Flash block will return invalid data.
8
21.4.7.5 Program P-Flash Command
The Program P-Flash operation will program a previously erased phrase in the P-Flash memory using an
embedded algorithm.
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.
FCCOB3 Read Once word 1 value
FCCOB4 Read Once word 2 value
FCCOB5 Read Once word 3 value
Table 21-40. Read Once Command Error Handling
Register Error Bit Error Condition
FSTAT
ACCERR
Set if CCOBIX[2:0] != 001 at command launch
Set if command not available in current mode (see Table 21-29 )
Set if an invalid phrase index is supplied
FPVIOL None
MGSTAT1 Set if any errors have been encountered during the read
MGSTAT0 Set if any non-correctable errors have been encountered during the read
Table 21-41. Program P-Flash Command FCCOB Requirements
Register FCCOB Parameters
FCCOB0 0x06
Global address [23:16] to
identify P-Flash block
FCCOB1 Global address [15:0] of phrase location to be programmed
(1)
1. Global address [2:0] must be 000
FCCOB2 Word 0 program value
FCCOB3 Word 1 program value
FCCOB4 Word 2 program value
FCCOB5 Word 3 program value
Table 21-39. Read Once Command FCCOB Requirements
Register FCCOB Parameters