TABLES
TABLE 1. LCD Command Codes
Command codes are used for LCD setup and control of character and cursor position. All command codes are written to LCD panel address $B5F0. The BUSY flag (bit 7) should be tested before any command updates to verify that any previous command is completed. A read of the command address $B5F0 will return the BUSY flag status and the current display character location address.
Command
Clear Display, Cursor to Home
Cursor to Home
Entry Mode:
Cursor Decrement, Shift off
Cursor Decrement, Shift on
Cursor Increment, Shift off
Cursor Increment, Shift on
Display Control:
Display, Cursor, and Cursor Blink off Display on, Cursor and Cursor Blink off Display and Cursor on, Cursor Blink off Display, Cursor, and Cursor Blink on
Cursor / Display Shift: (nondestructive move) Cursor shift left
Cursor shift right
Display shift left
Display shift right
Display Function (default 2x40 size) Character Generator Ram Address set Display Ram Address set
Code $01 $02
$04 $05 $06 $07
$08 $0C $0E $0F
$10 $14 $18 $1C $3C
Delay
1.65ms
1.65ms
40us
40us
40us
40us
40us
40us
40us
40us
40us
40us
40us
40us
40us
40us
40us
TABLE 2. LCD Character Codes
$20 Space $21 ! $22 “ $23 # $24 $ $25 % $26 & $27 ‘ $28 ( $29 ) $2A * $2B + $2C ,
$2D - $2E . $2F / $30 0 $31 1 $32 2 $33 3 $34 4 $35 5 $36 6 $37 7 $38 8 $39 9
$3A : $3B ; $3C { $3D = $3E } $3F ? $40 Time $41 A $42 B $43 C $44 D $45 E $46 F
$47 | G | $54 | T | $61 | a |
$48 | H | $55 | U | $62 | b |
$49 | I | $56 | V | $63 | c |
$4A | J | $57 | W | $64 | d |
$4B | K | $58 | X | $65 | e |
$4C | L | $59 | Y | $66 | f |
$4D | M | $5A | Z | $67 | g |
$4E | N | $5B | [ | $68 | h |
$4F | O | $5C | Yen | $69 | i |
$50 | P | $5D | ] | $6A | j |
$51 | Q | $5E | ^ | $6B | k |
$52 | R | $5F | _ | $6C | l |
$53 | S | $60 | ` | $6D | m |
$6E n $6F o $70 p $71 q $72 r $73 s $74 t $75 u $76 v $77 w $78 x $79 y $7A z
$7B { $7C $7D } $7E > $7F <
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