Block Diagram - Sam4s ER-350 Service Manual

8 Block Diagram

Power
Part
Printer
ERP-200N
SAM4S ER-350 SERIES
Front
Display
Vpp
V
DI
V
F
RESET
Power Fail
(/INTO)
Printer
Driver
Display
Driver
/int1
Display
Driver
Figure8-1 System Block Diagram
Rear
Display
Display
Driver
CPU
80C32
80C52
78C32B
Clock
12MHz
ROM
(Program)
RAM
(Data)
RTC
(RP5C15)
Drawer
Driver
Fiscal
Control
Mode Key
Key Board
Battery
(Back-Up)
Clock
32.768kHz
Cash
Drawer
Fiscal
EPROM
8-1