Casio DT-700, Руководство по обслуживанию, Страница: 7 / 42

Page 5
3. Mac operation
3-1. Reset key
In power off:
Reset flag and NMI is going to be on.
Initialization of
Hardware.
In Power on: Compulsion electric power
supply off This switch is covered
by filler.
3-2. Boot switch
4--2-1. Init key
Electric power supply ON is done with compulsion menu boot from OFF status.
Even electric power supply ON status does compulsion menu boot.
In reset operation, invalid.
4-2-2. PW key
It boots with hardware suppress.
3-3. The other switch
4-3-1. Battery lid switch
When battery cover is opened, power supply is off.
3-4. The detection of battery consumption
Power supply Level Description Voltage Handling of Hardware
Main Battery
Replacement battery voltage
LB1 2.1 V IRQ6 (INT3)
Operating limits voltage
LB0 1.6 V NMI
Sub Battery
Replacement battery voltage
LB2 2.6 V IRQ6 (INT3)
Back-up Voltage
Back-up limits voltage
LB-1 2.0 V Flag reset, RTC
Note: In LB°1 status, there is the possibility that memory and resistor could be destroyed.
4. Main components
CPU HD6437020U01X 32 bit RISC CPU
ROM E28F200BL-B150 (Flash ROM)
MB838200BLPF TN-12A (Mask ROM)
RAM HM65W8512L PS-RAM 512kb/1mMb
Gate array SLA912SF3S
LCD FSTN semi-transparent LCD 96 X 48 dots
Scanner VLM-1600 Semiconductor laser
External Interface
Infrared ray: DT-760 I/O
14-3 pin cable: FP-120, FA-50
14-14 pin cable: DT-700
14-9 pin cable: DT-9000