AN2400 Freescale Semiconductor / Motorola, AN2400 Datasheet - Page 17

• Manufacturer Part Number: AN2400
• Description: HCS12 NVM Guidelines
• Manufacturer: Freescale Semiconductor / Motorola

Parallel Flash Block
Programming
MOTOROLA
If a PVIOL flag is set in any of the FSTAT registers the Command State
Machine is locked. It is not possible to launch another command on any block
until the PVIOL flag is cleared.
On microcontrollers that have multiple Flash blocks, the programming time can
be reduced by programming the Flash blocks in parallel. This is possible
because each Flash block has independent command state machines,
registers, buffers and charge pumps.
The general procedure for programming multiple Flash blocks in parallel is
shown in
software has to supply the programming algorithm with data words for each
Flash block in turn.
3. Writing the mass erase command to FCMD while any protection is
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Figure 17. Parallel Flash Block
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HCS12 NVM Guidelines
Programming. The programming
Flash Memory
AN2400/D
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