LC876694B/78B/62B

No.6843-4/23

(19) Standby function

- HALT mode

HALT mode is used to reduce power consumption.

Program execution is stopped. Peripheral circuits still

operate but VFD display and some serial transfer operations stop.

1) Oscillation circuits are not stopped automatically.

2) Release occurs on system reset or by interrupt.

-HOLD mode

HOLD mode is used to reduce power consumption.

Both program execution and peripheral circuits are

stopped.

1)CF, RCand crystal oscillation circuits stop automatically.

2) Release occurs on any of the following conditions.

(1) input to the reset pin goes low

(2) a specified level is input at least one of INT0, INT1, INT2

(3) an interrupt condition arises at port 0

-X’tal HOLD made

X’tal HOLD mode is used to reduce power consumption.

Program execution is stopped.

All peripheral circuits except the base timer are stopped.

1) CF and RC oscillation circuits stop automatically.

2) Crystal oscillator is maintained in its state at HOLD mode inception.

3) Release occurs on any an any of the following conditions

(1) input to the reset pin goes low

(2) a specified level is input to at least one of INT0, INT1, INT2

(3) an interrupt condition arises at port 0

(4) an interrupt condition arises at the base-timer

(20) Factory shipment

-delivery form QIP100E

(21) Development tools

- Evaluation chip: LC876095

- Emulator: EVA62S + ECB876600 (Evaluation chip board) + SUB876500 + POD100QFP

- Flash ROM version: LC87F66C8A