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23. SHUTDOWN CONTROL
The power switch of the UP-5900 is used to switch between terminal
ON state and stand-by state.
When starting the terminal, the power switch should be set to ON.
When the power switch is set to the stand-by mode, the power unit is
automatically terminated. By holding HOP1 pin of PSC by the software
(PHOLD =1), the power unit does not stop, but keeps ON until the soft-
ware cancels holding.
If shutdown control cannot be made by the above software, turn ON the
shutdown switch on the side to forcibly cancel the stand-by mode.
When, however, the power switch is ON, though the shutdown switch is
turned ON, the power unit will ignore it and will not stop.
Sense Register of power ON/OFF control and power switch state
General-use I/O Port (PSC+408h)=588h
HIOP
b7
b6
b5
Read
0
BLON PHOLD SLEEP
Write
0
BLON PHOLD SLEEP
bit7 :
not use
bit6 :
LCD Back Light ON signal
BLON=0 : LCD Back Light is turned off.
BLON=1 : LCD Back Light is turned on.
bit5 :
AC power Hold signal
PHOLD="0" When Power Switch is at OFF position, the
power is shut down.
PHOLD="1" Though Power Switch is at OFF position, the
power is kept on.
PHOLD, Default is "0." To inhibit manual power OFF opera-
tion of Power Switch after POWER ON, set to "1."
When it is set to "0," the power can be turned off by manual
operation of Power Switch.
(3) Command (CPU 3
3 3
3 Controller)
Command
HT
BS
US LF
LF
US CR
CR
HOM
US B
US $ n m
CLR
CAN
US X n
US E n
ESC @
ESC t n
ESC R n
US r n
US MD1
US MD2
b4
b3
b2
b1
0
0
PHSNS MLOCK
0
0
0
Function
Shift display position to right
Shift display position to left
Shift display position up
Shift display position down
Shift display position to the end of the same line
Shift display position to left edge of the same line
Shift display position to home position
Shift display position to bottom position
Shift display position to any desired position
Display clear
Display line clear
Bright ness adjustment of luminescent display tube
Display blink
Display initialization
Selection of text code table
Selection of international text
Select/cancel of highlighted text
Over-write Mode select
Vertical Scroll Mode select
UP-5900VS CIRCUIT DESCRIPTION
bit7 :
not use
This bit is designed for prevention of power OFF by manual
operation of Power Switch, and it has no effect on power
interruption by power service interruption.
bit4 :
SLEEP=0 Operation Mode Rotates the power fan, and con-
SLEEP=1 Sleep Mode
In the UP-5000 series, SLEEP=0 should be always kept.
bit3-2 :
not use
bit1 :
Power Switch state Sense Register
PHSNS="0" Power Switch OFF
PHSNS="1" Power Switch ON
bit0 :
not use (CPU cooler Motor LOCK sense)
b0
(MLOCK=0 Motor rotating)
(MLOCK=1 Motor stationary)
0
24. VACUUM FLUORESCENT DISPLAY (VFD)
24-1. UP-P20DP/UP-I20DP
(1) Outlines
Display content: 5 u 7dots (20 Digits u 2 Lines) + Period + Comma +
UART4 in PSC2 is used as Serial6.
(RS-232C Level I/F, Serial, 8bit, non-parity, 1stop-bit, 9600bps, RXD/
DSR/DTR)
Automatic blinking of
(2) VFD Control
UART4 built in PSC2 as Mega Macro Function is used. The I/O address
fir this interface is PSC2 + (808h-80Fh) = 908h-90Fh.
5 – 52
nects the LCD power.
Stops the power fan, and shuts
down the LCD power.
mark when supplying the power.
Code
09h
08h
1Fh 0Ah
0Ah
1Fh 0Dh
0Dh
0Bh
1Fh 42h
1Fh 24h
n m
0Ch
18h
1Fh 58h
n
1Fh 45h
n
1Bh 40h
1Bh 74h
n
1Bh 52h
n
1Fh 72h
n
1Fh 01h
1Fh 02h
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