Sharp UP-600 Service Manual page 46

2) MRS, SRV RESET
The UP-600 does not have the mode switch. The procedure for reset-
ting MRS, SRV is different from that of conventional cash registers.
in the UP-600, MRS, SRV resetting is selected and executed by the
key which has bee depressed when the CKDC reset is released to
start the system.
(In the case of MRS, security is added by a key operation equivalent
to a pass word.)
Flow chart
Start
CKDC start
condition read
No
Hard reset
start?
Yes
*Slide Switch
operation
MRS1 key
ON?
Yes
PASSWORD
judgement
No
OK?
Yes
SRV reset
MRS reset
14. DRAWER
The UP-600 can use up to 2 optional external drawers.
1) DRAWER SOLENOID DRIVE
P34 ∼ P37 inside the CPU are allocated for the port output of the
drawer solenoid drive.
Built-in port Signal name
P34 DR0
P35 DR1
P36 DR2
P37 DR3
One port corresponds to one drawer. Theoretically, it is possible to
drive multiple drawers at the same time, but this processing must be
inhibited softwarewisely because of power supply capacity and driver
hardware factors. If a power failure is detected, the drawer solenoid
drive must be stopped as soon as possible.
The drawer solenoid drive time must controlled in the range of 40
ms to 50 ms by the timer.
No
Normal
start?
SRV reset
Yes
Recovery
No
MRS2 key
ON?
Yes
PASSWORD
judgement
No
OK?
Yes
SRV reset
10-key position
input sequence
MRS reset
Remarks
Drawer 1 (optional drawer)
Drawer 2 (optional drawer)
Reserved
Reserved
2) DRAWER OPEN/CLOSE SENSE
The drawer open/close sense signal is input into the built-in port of
the CPU. the sense signal of an optional drawer sensor is also wired
ORed before inputting.
•
P33=1: Any of the drawers is open.
15. TCP/IP STACK
The LAN of the UP-600 uses as a protocol Ethernet, which supports
TCP/IP.
The interface with the TCP/IP board is achieved through 2 interrupt
signals and dual-port RAM.
The decode of dual-port RAM is located in the following space:
DP-RAM: F20000H - F2FFFFH (max. 64 KB)
The interruption from the TCP/IP is allocated as follows:
EXINTO: INTSW (SLAVE WRITE interrupt) bit 6 of 00FF81H
EXINT1: INTSR (SLAVE READ interrupt) bit 0 of 00FF80H
<TCP/IP connector terminals>
Signal Name Pin No.
+5V 2
+5V 4
A14 6
A12 8
HWR 10
A10 12
A0 14
A2 16
A4 18
A6 20
A8 22
D7 24
D5 26
D3 28
D1 30
LRES 32
INTSW 34
- 36
GND 38
GND 40
16. RS232
Two standard RS232 channels are compatible with the ER-A5RS.
However, while the ER-A5RS uses the IRQ2 terminal of the CPU for
interruption of the RS232, the UP-600 cannot use the IRQ1 terminal
instead of it. (The IRQ2 terminal is used for IR as the SCK1 terminal.)
The standard RS232 is fixed to the logic channels 1 and 8. Use the
channels 2, 3, 4, 5, 6 and 7 for the ER-A5RS.
17. MCR
This paragraph describes MCR option (UP-E13MR) control defined
by UP-600 hardware architecture.
3 channels of the serial port (interchangeable with 8251) built in the
MPCA9 are used. 3 tracks of data are read simultaneously. Supports
the first and second tracks MCR of ISO. (UP-E13MR)
Pin No. Signal Name
1 +5V
3 +5V
5 A15
7 A13
9 DPCS
11 A11
13 RD
15 A1
17 A3
19 A5
21 A7
23 A9
25 D6
27 D4
29 D2
31 D0
33 INTSR
35 -
37 GND
39 GND