GMS81C50 Datasheet, PDF (76/99 Pages) Hynix Semiconductor – 8-BIT SINGLE CHIP MICROCONTROLLERS

HYUNDAI
GMS81C50 Series
STOP Command
Standby Mode
Interrupt Request GEN.
0
IE Flag
1
Standby Mode Release
PSW
0
IE Flag
1
Interrupt Service Routine
Standby Next Command
Execution
Figure 14-4 Standby Mode Release Flow
Internal circuit
Oscillator
Internal CPU clock
Register
RAM
I/O port
Prescaler
Basic Interval Timer
Watch Dog Timer
Timer
Address Bus, Data Bus
SLEEP mode
Active
Stop
Retained
Retained
Retained
Active
PS10 selected : Active
Others : Stop
Stop
Stop
Retained
STOP mode
Stop
Stop
Retained
Retained
Retained
Retained
Stop
Stop
Stop
Retained
Table 14-3 Operation State in Standby Mode
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