Rabbit OP7100 User Manual download pdf (Page 144)

138 eDisplay (OP7200)

0xA004 (Write)

1 = backlight on,

0 = backlight off

BKLT-ON Backlight on/off control

0xA005 (Write)

1 = Xmit on, 0 = Xmit off

RS-485EN RS-485 transmitter control

0xA006 (Write)

1 = buzzer on, 0 = buzzer off

ALARM Buzzer on/off control

0xA007 (Write)

1 = assert LCD address A16,

0 = deassert LCD address A16

VA16 LCD address line A16

0xA008 (Write)

1 = assert X9013 chip select,

0 = deassert X9013 chip select

/CS Contrast control chip select

0xA009 (Write)

1 = set X9013 to count up,

0 = set X9013 to count down

U_D Contrast control count mode

0xA00A (Write) increment

X9013 counter when accessed,

data = don’t care

INC Contrast control CLK line

0xA00B–0xA00F Reserved Not used

0xE000 (W/R)

command data byte

/PE7-LCDM-CS SED1335 command register

0xE001 (W/R)

data register byte

/PE7-LCDM-CS SED1335 data register

Table A-4. Display and Keypad I/O Addresses (continued)

External Address Signal Name Function

1 2 ... 139 140 141 142 143 144 145 146 147 148 149 ... 171 172

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Rabbit OP7100 User Manual Page 144