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FTS64K Datasheet(PDF) 31 Page - Freescale Semiconductor, Inc

Part # FTS64K
Description  64k bytes of Flash memory
PDF  44 Pages
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Manufacturer  FREESCALE [Freescale Semiconductor, Inc]
Direct Link  http://www.freescale.com
Logo FREESCALE - Freescale Semiconductor, Inc

FTS64K Datasheet(HTML) 31 Page - Freescale Semiconductor, Inc

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FTS64K Block User Guide — Version V01.00
31
Figure 4-1 PRDIV8 and FDIV bits Determination Procedure
PRDIV8=1
yes
no
PRDIV8=0 (reset)
12.8MHz?
FCLK=(PRDCLK)/(1+FDIV[5:0])
PRDCLK=oscillator clock
PRDCLK=oscillator clock/8
PRDCLK[MHz]*(5+Tbus[
µs])
no
FDIV[5:0]=PRDCLK[MHz]*(5+Tbus[
µs]) - 1
yes
START
Tbus < 1
µs?
an integer?
FDIV[5:0]=INT(PRDCLK[MHz]*(5+Tbus[
µs]))
1/FCLK[MHz] + Tbus[
µs] > 5
AND
FCLK > 0.15MHz
?
END
yes
no
FDIV> 4?
PROGRAM/ERASE IMPOSSIBLE
yes
no
PROGRAM/ERASE IMPOSSIBLE
no
TRY TO DECREASE Tbus
yes
oscillator clock
Freescale Semiconductor, Inc.
For More Information On This Product,
Go to: www.freescale.com



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