Bolymin BEGV643A Series, User Manual

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BEGV643A User Manual Ver.0
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3-2 MCU Port Mapping
3-2-1 LCD Controller
(Table 3.2a)
MCU ATmega644P LCD Controller
PORTB.0 DB0(LSB)
PORTB.1 DB1
PORTB.2 DB2
PORTB.3 DB3
PORTD.4 DB4
PORTD.5 DB5
PORTD.6 DB6
PORTD.7 DB7(MSB)
PORTC.7 LCD
/RESET
PORTC.5 LCD RD
PORTC.4 LCD WR
PORTC.6 LCD C/D
3-2-2 Touch Panel
(Table 3.2b)
MCU ATmega644P Touch Panel
PORTA.0 X1
PORTA.1 Y1
PORTA.2 X2
PORTA.3 Y2
3-2-3 RS-232/RS-422/RS-485
(Table 3.2c)
MCU ATmega644P RS-232/422/485
PORTD.0 RX0
PORTD.1 TX0
PORTD.2 RX1
PORTD.3 TX1
(Table 3.2d)
MCU ATmega644P RS-485
PORTA.5 Enable RS-485
3-2-4 Enable Backlight
(Table 3.2e)
MCU ATmega644P LED backlight
PORTA.6 Enable Backlight
3-2-5 EEPROM/I
2
C
(Table 3.2f)
MCU ATmega644P EEPROM/ I
2
C
PORTC.2 EEPROM SDA
PORTC.3 EEPROM SCL
3-2-6 2-wire serial port
(Table 3.2g)
MCU ATmega644P 2-wire serial port
PORTC.1 SDA
PORTC.0 SCL