DEMO9S08JM16 Freescale Semiconductor, DEMO9S08JM16 Datasheet - Page 50

• Manufacturer Part Number: DEMO9S08JM16
• Description: BOARD DEMO FOR JM16 FAMI
• Manufacturer: Freescale Semiconductor
• Type: MCUr

Specifications of DEMO9S08JM16

• Contents: Board with Daughter card, Cable, Documentation, Mini-AB USB Kit
• Processor To Be Evaluated: MC9S08JM16
• Data Bus Width: 8 bit
• Interface Type: USB
• Silicon Manufacturer: Freescale
• Core Architecture: HCS08
• Core Sub-architecture: HCS08
• Silicon Core Number: MC9S08
• Silicon Family Name: Flexis - S08JM
• Rohs Compliant: Yes
• For Use With/related Products: MC9S08JM16
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

Chapter 4 Memory
is issued, an internal charge pump associated with the flash memory must be enabled to supply high
voltage to the array. Upon completion of the command, the charge pump is turned off. When a burst
program command is issued, the charge pump is enabled and then remains enabled after completion of the
burst program operation if these two conditions are met:
The first byte of a series of sequential bytes being programmed in burst mode will take the same amount
of time to program as a byte programmed in standard mode. Subsequent bytes will program in the burst
program time provided that the conditions above are met. In the case the next sequential address is the
beginning of a new row, the program time for that byte will be the standard time instead of the burst time.
This is because the high voltage to the array must be disabled and then enabled again. If a new burst
command has not been queued before the current command completes, then the charge pump will be
disabled and high voltage will be removed from the array.
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The next burst program command has been queued before the current program operation has
completed.
The next sequential address selects a byte on the same physical row as the current byte being
programmed. A row of flash memory consists of 64 bytes. A byte within a row is selected by
addresses A5 through A0. A new row begins when addresses A5 through A0 are all zero.
MC9S08JM16 Series Data Sheet, Rev. 2
Freescale Semiconductor