Freescale Semiconductor Tower System Eval Kit for MC9S12GN32 TWR-S12GN32-KIT TWR-S12GN32-KIT Hoja De Datos

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TWR-S12GN32-KIT

240 KByte Flash Module (S12FTMRG240K2V1)

MC9S12G Family Reference Manual, Rev.1.23

Freescale Semiconductor

1173

31.4.6.2

Erase Verify Block Command

The Erase Verify Block command allows the user to verify that an entire P-Flash or EEPROM block has
been erased. The FCCOB FlashBlockSelectionCode[1:0]bits determine which block must be verified.

Upon clearing CCIF to launch the Erase Verify Block command, the Memory Controller will verify that
the selected P-Flash or EEPROM block is erased. The CCIF flag will set after the Erase Verify Block
operation has completed.If the block is not erased, it means blank check failed, both MGSTAT bits will be
set.

31.4.6.3

Erase Verify P-Flash Section Command

The Erase Verify P-Flash Section command will verify that a section of code in the P-Flash memory is
erased. The Erase Verify P-Flash Section command defines the starting point of the code to be verified and
the number of phrases.

Table 31-33. Erase Verify Block Command FCCOB Requirements

CCOBIX[2:0]

FCCOB Parameters

000

0x02

Flash block

selection code [1:0]

. See

Table 31-34

Table 31-34. Flash block selection code description

Selection code[1:0]

Flash block to be verified

EEPROM

P-Flash

Table 31-35. Erase Verify Block Command Error Handling

Register

Error Bit

Error Condition

FSTAT

ACCERR

Set if CCOBIX[2:0] != 000 at command launch.

FPVIOL

None.

MGSTAT1

Set if any errors have been encountered during the read or if blank check failed.

MGSTAT0

Set if any non-correctable errors have been encountered during the read

or if

blank check failed.