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MC68HC705MC4MP データシート(PDF) 57 Page - Freescale Semiconductor, Inc

部品番号 MC68HC705MC4MP
部品情報  General Release Specification
PDF  180 Pages
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メーカー  FREESCALE [Freescale Semiconductor, Inc]
ホームページ  http://www.freescale.com
Logo FREESCALE - Freescale Semiconductor, Inc

MC68HC705MC4MP データシート(HTML) 57 Page - Freescale Semiconductor, Inc

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Operating Modes
Bootloader Mode
General Release Specification
Operating Modes
Figure 6-2. Bootloader Flowchart
BOOT
PC1 = 0
FACTORY TEST MODE
GET BYTE FROM PORT A
PROGRAM BYTE
GET NEXT ADDRESS
DDRA = OUTPUT
GET BYTE START @ $100
PUT BYTE ON PORT A
CHANGE INSTRUCTION
FROM STA TO EOR
INCREASE COUNT TO $100
START ADDR <- $100
GET BYTE FROM PORT A
JSR RAMSUB
GET NEXT ADDRESS
END ADDRESS
($0FFF)
END ADDRESS
($0FFF)
WAIT
FACTORY
WAIT
VERIFY LED ON
COMPARE
END ADDR
($0FFF)
PC2 = 1
PC3 = 1
PC2 = 1
YES
YES
NO
YES
YES
YES
YES
YES
NO
NO
NO
NO
NO
NO
NO
YES
DUMP EPROM
PRG/VERF
VERIFY
MAYPRG
BUMP COUNT TO $100
BUMP COUNT TO $100
INITIALIZE I/O PORTS
GET NEXT ADDRESS
*Ignores boot code address space
Mask set 0F21S does not verify MOR.
TEST MODE
Freescale Semiconductor, Inc.
For More Information On This Product,
Go to: www.freescale.com



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