
HYUNDAI MicroElectronics
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2.13. STANDBY FUNCTION
To save the consuming power of device, GMS81508/16 has STOP Mode.
In this mode, the execution of program is stopped. Stop Mode entered by STOP instruction.
At STOP Mode, Device Operation State.
Peripheral Function STOP Mode
Oscillator
CPU Clock
RAM, Register Retain
I/O Port Retain
Prescaler
Basic Interval Timer
Serial I/O Operation( External Clock Selection)
WDT, Timer, A/DC,PWM,
Buzzer Driver
Address Bus, Data Bus Retain
Rd, Wt, R/W Retain
HALT, BRQ, BAK Active
C
"L" level
SYNC "H" level
halt
STOP
IFBIT
CPU Clock
Release Signal from Interrupt Circuit
RESET
Clock Pulse GEN.
MUX
Prescaler
R
Q
S
Q
Overflow
Detection
Basic Interval Timer
R
Q
S
Q
OSC.
Circuit