KANDA STK300, Руководство пользователя

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Page 6
Hardware Description
The main features of the board are shown in the diagram below.
Note : There are a number of jumpers on the board which are used to select different operations
and voltages. The default jumper settings are for programming operations at 5V (JP1 Closed)
with brownout also set to 5V (JP2 Open).
To carry out other operations, some jumpers may have to be removed - refer to the relevant
section for details. A full list of the jumpers and links are given in the table overleaf.
Plug in MEGA
board here
Analog I/P
Port A Digital
Port B Header
Port C
Header
Port D Jumpers
Disable Switches
Port D
Header
Misc Header for
non-port pins
8 switches on Port D
8 LEDs on Port B
JP2 for Brown-out
at 3.3V or 5V
On-Off
Switch
Power Input
9-15V DC or
7-12V AC
ISP Interface
Ext. SRAM
Address Latch
IC for RAM
4MHz Crystal
LCD
Contrast
Adjustment
LCD Connector
Analog Reference
Voltage Adjustment
Port B
Jumpers
Disable LEDs
JP1 Jumper for 3.3
or 5V Vcc Select
LK1 - Cut for A/D
External Reference
Power On
and Program
lights
Selector for
RS232
External
Memory
Expansion
Port E Header
O/P pins for
Ve supply to
Op-Amp etc.