GMS81508B HYNIX [Hynix Semiconductor], GMS81508B Datasheet - Page 75

• Manufacturer Part Number: GMS81508B
• Description: HYUNDAI MICRO ELECTRONICS 8-BIT SINGLE-CHIP MICROCONTROLLERS
• Manufacturer: HYNIX [Hynix Semiconductor]

GMS81508B/16B/24B
72
When PFR = 1
Internal
RESET
Internal
RESET
Internal
RESET
V
V
V
DD
DD
DD
Figure 21-2 Example S/W of RESET flow by Power fail
Figure 21-3 Power Fail Processor Situations
INITIALIZE REGISTERS
INITIALIZE ALL PORTS
INITIALIZE RAM DATA
RESET VECTOR
RAM CLEAR
EXECUTION
FUNTION
PFS =1
NO
t <64mS
YES
64mS
64mS
64mS
PFS = 0
initial routine
HYUNDAI MicroElectronics
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DEC. 1999 Ver 1.04
V
V
V
V
V
V
PFD
PFD
PFD
PFD
PFD
PFD
MAX
MAX
MAX
MIN
MIN
MIN