Casio MP-2000 Service Manual page 15

Example program; < Read Drawer open status >
Input 220h
If data is FFh: Drawer A , B closed
If data is FEh: Drawer A is open, Drawer B is closed.
If data is FDh: Drawer A is closed, Drawer B is open.
If data is FCh: Drawer A is open, Drawer B is open.
Note: 1) Drawer open signal on time is 100 ms.
2) Do not open Drawer A and B at same time ( Output data 03 ). If two drawers were
open at same time, it may cause damage on system power supply.
Keyboard interface
The MP-2000 provides a standard PS/2 keyboard connector located at the interface panel.
Connect the POS keyboard module MP-2040KY to this port.
PS/2 Mouse interface
The MP-2000 has one PS/2 mouse connector located at the right side. A simple plug-in will make the connec-
tion.
External FDD
The MP-2000 does not build in any floppy disk drive into the main system. Rather, it provides a FDD interface
located at the side panel. An external FDD cable is provided to connect a standard 3.5" FDD to the system for
system O/S and application software installation. Its pin position and pin assignment is listed as follows;
: Read Drawer open status
External FDD Pin Assignment
P 1 GND
P 2 GND
P 3 GND
P 4 GND
P 5 GND
P 6 GND
P 7 GND
P 8 GND
P 9 GND
P 10 GND
P 11 GND
P 12 GND
P 13 GND
— 14 —
P 14 GND
P 15 GND
P 16 GND
P 17 GND
P 18 GND
P 19 +12V
P 20 REDWC-
P 21 NC
P 22 NC
P 23 INDEX-
P 24 MOTE0-
P 25 DRVS1-
P 26 DRVS0-
P 27 MOTE1-
P 28 DIR-
P 29 STEP-
P 30 WDATA-
P 31 WGATE-
P 32 TRKO-
P 33 WPT-
P 34 RDATA-
P 35 SIDE1-
P 36 DSKCHG-
P 37 Vcc