mc68hc908qz16 Freescale Semiconductor, Inc, mc68hc908qz16 Datasheet - Page 277
mc68hc908qz16
Manufacturer Part Number
mc68hc908qz16
Description
M68hc08 Microcontrollers
Manufacturer
Freescale Semiconductor, Inc
Datasheet
1.MC68HC908QZ16.pdf
(314 pages)
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Freescale Semiconductor
PROGRAMMING
FROM
IS ENABLED)
DEBUGGING
CONDITIONS
AND FLASH
(IF FLASH
Table 20-1
VECTOR BLANK?
PTA1 = 0, RESET
MONITOR MODE
Figure 20-8. Simplified Monitor Mode Entry Flowchart
PTA0 = 1,
FORCED
MC68HC908GZ16 • MC68HC908GZ8 Data Sheet, Rev. 4
YES
YES
NO
NO
MONITOR MODE ENTRY
8 SECURITY BYTES
MONITOR CODE
DOES RESET
HOST SENDS
USER MODE
IS RESET
EXECUTE
POR RESET
IRQ = V
OCCUR?
NORMAL
POR?
NO
TST
?
YES
NO
YES
ENABLE FLASH
PTA0 = 1, PTA1 = 0,
MONITOR MODE
PTB0 = 1, AND
PTB1 = 0?
NORMAL
YES
YES
SECURITY BYTES
CORRECT?
ARE ALL
NO
USER MODE
Monitor ROM (MON)
INVALID
DISABLE FLASH
NO
277
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