ELCOM Euro-50 Service Manual page 41

Euro-50
P44 PS2 input
P45 BDCOL1 output
P46 BDCOL2 output
P47 BDCOL3 output
Table 5.8. Port 5
Output Signal Type
UART0,
P50 TXD0
TxD
UART0,
P51 RXD0
RxD
input,
P52 ONSWSTAT
EXINT10
input,
P53 RW0
EXINT11
input,
P54 RW1
EXINT12
input,
P55 RW2
EXINT13
input,
P56 RW3
EXINT14
input,
P57 RW4
EXINT15
Table 5.9. Port 6
Output Signal Type
P60 A output
P61 An output
P62 B output
P63 Bn output
P64 PSTB output
P65 PLATCHn output
P66 JMOTOR output
P67 NC -
41
External sensor for paper
receipt ribbon
Switching of columns in
mother keyboard
Switching of columns in
mother keyboard
Switching of columns in
mother keyboard
Function
UART0, TxD
UART0, RxD
Position of cash register
power switch
Keyboard - row 0
Keyboard - row 1
Keyboard - row 2
Keyboard - row 3
Keyboard - row 4
Function
Phase of step motor driver
Phase of step motor driver
Phase of step motor driver
Phase of step motor driver
United strobe signal for prin-
ter (STB1 to STB6)
Record to shifted register
printer head
Controlling winding of jour-
nal motor
unused
L - paper missing
H - paper OK, State
of sensor can only
be determined if
VDDQSW voltage is
switched on
-
-
-
Active level
State during reset
- specification
- H
according to the state
- of the RS232 interface,
H or L
H - switch pressed H or L according to
L - switch not pressed state of the switch
H L
H L
H L
H L
H L
Active level
State during reset
- specification
- L
- L
- L
- L
H L
H - hold L - through Data
are entered transition L output - L
from L to H
H - motor turns, for sta-
bilization of the current
L
through the motor, it is
necessary to use PWM
- L
Service manual
L -
H H
H H
H H
Type
- quiet state
output - H
input - X
-
-
-
-
-
-
Queit state
output - L
output - L
output - L
output - L
output - L
output - L
-
Elcom s. r. o.