SC312XDP512F0MPVR datasheet(1220/1348 Pages) FREESCALE

номер детали	SC312XDP512F0MPVR

подробное описание детали	HCS12X Microcontrollers

PDF	1348 Pages

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производитель	FREESCALE [Freescale Semiconductor, Inc]

домашняя страница	http://www.freescale.com

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1220 / 1348 page

Chapter 29 128 Kbyte Flash Module (S12XFTX128K1V1)

MC9S12XDP512 Data Sheet, Rev. 2.21

1222

Freescale Semiconductor

29.4.2.5

Mass Erase Command

The mass erase operation will erase all addresses in a Flash block using an embedded algorithm.

An example ﬂow to execute the mass erase operation is shown in Figure 29-28. The mass erase command

write sequence is as follows:

1. Write to a Flash block address to start the command write sequence for the mass erase command.

The address and data written will be ignored.

2. Write the mass erase command, 0x41, to the FCMD register.

3. Clear the CBEIF ﬂag in the FSTAT register by writing a 1 to CBEIF to launch the mass erase

command.

If a Flash block to be erased contains any protected area, the PVIOL ﬂag in the FSTAT register will set and

the mass erase command will not launch. Once the mass erase command has successfully launched, the

CCIF ﬂag in the FSTAT register will set after the mass erase operation has completed unless a new

command write sequence has been buffered.

SC312XDP512F0MPVR датащи(PDF) 1220 Page - Freescale Semiconductor, Inc