EM78P341N/342N/343N
8-Bit Microprocessor with OTP ROM
Signal
Sleep Mode
Idle Mode
Normal Mode
Green Mode
RE (LVDWE) Bit 0=0,
RE (LVDWE) Bit 0=0, IOCD1
IOCD1 (LVDIE) Bit 3=0
IOCD1 (LVDIE) Bit 3=0
IOCD1 (LVDIE) Bit 3=0 (LVDIE) Bit 3=0
Low voltage detector
Low voltage detector
wake-up is invalid.
wake-up is invalid.
Oscillator, TCC, TCCX
Low voltage detector
Low voltage detector
interrupted is invalid.
Oscillator, TCC, TCCX and interrupted is invalid.
IR/PWM keep on running.
and IR/PWM are
stopped.
RE (LVDWE) Bit 0=0,
RE (LVDWE) Bit 0=0, IOCD1
N/A
N/A
N/A
IOCD1 (LVDIE) Bit 3=1 (LVDIE) Bit 3=1
Set RE (LVDIF)=1,
Set RE (LVDIF)=1,
Low voltage detector
Low voltage detector
wake-up is invalid.
wake-up is invalid.
Oscillator, TCC, TCCX
Oscillator, TCC, TCCX and
and IR/PWM are
N/A
IR/PWM keep on running.
stopped.
RE (LVDWE) Bit 0=1,
RE (LVDWE) Bit 0=1, IOCD1
N/A
N/A
N/A
N/A
IOCD1 (LVDIE) Bit 3=0 (LVDIE) Bit 3=0
Wake-up + Next
Low Voltage
Detector
interrupt
Instruction,
Wake-up + Next Instruction,
Oscillator, TCC, TCCX
and IR/PWM are
stopped.
Oscillator, TCC, TCCX and
IR/PWM keep on running.
RE (LVDWE) Bit =1,
DISI + IOCD1 (LVDIE)
Bit 3=1
RE (LVDWE) Bit 0=1, DISI + DISI + IOCD1 (LVDIE)
DISI + IOCD1 (LVDIE)
Bit 3=1
IOCD1 (LVDIE) Bit 3=1
Bit 3=1
Wake-up + Next
Instruction + Set RE
(LVDIF)=1,
Wake-up + Next Instruction
+ Set RE (LVDIF)=1,
Next Instruction
Next Instruction
Oscillator, TCC, TCCX
and IR/PWM are
stopped.
Oscillator, TCC, TCCX and + Set RE (LVDIF)=1
IR/PWM keep on running.
+ Set RE (LVDIF)=1
RE (LVDWE) Bit 2=1,
ENI + IOCD1 (LVDIE)
Bit 3=1
RE (LVDWE) Bit0=1, ENI + ENI + IOCD1 (LVDIE)
ENI + IOCD1 (LVDIE)
Bit 3=1
IOCD1 (LVDIE) Bit 3=1
Bit 3=1
Wake-up + Interrupt
Wake-up + Interrupt Vector
Vector (021H) + Set RE (021H) + Set RE
Interrupt Vector (021H)
+ Set RE (LVDIF)=1
Interrupt Vector (021H)
+ Set RE (LVDIF)=1
(LVDIF)=1,Oscillator,
TCC, TCCX and
(LVDIF)=1,Oscillator, TCC,
TCCX and IR/PWM keep on
running.
IR/PWM are stopped.
WDT Time Out
IOCE (WDTE)
Bit 7=1
Wake-up + Reset
(Address 0x00)
Wake-up + Reset
(Address 0x00)
Reset (Address 0x00)
Reset (Address 0x00)
Reset (Address 0x00)
Reset (Address 0x00)
Wake-up + Reset
(Address 0x00)
Low voltage
reset
Wake-up + Reset
(Address 0x00)
Product Specification (V1.0) 12.01.2006
(This specification is subject to change without further notice)
• 43
ELAN [ ELAN MICROELECTRONICS CORP ]
