Download SAPIC-E Small Alphanumeric LCD Controller User`s Manual

CG RAM, DD RAM, and pattern examples for 5x7 dot patterns
Character Codes CG RAM Address Character Patterns
(DD RAM Data)
(CG RAM Data)
76543210
543210
43210
000000
11110
000001
10001
000010
1 0 0 0 1 - Character
000011
1 1 1 1 0 - Pattern
0000*000
000100
1 0 1 0 0 - Example (1)
000101
10010
000110
10001
000111
0 0 0 0 0 - Cursor Position
001000
10001
001001
01010
001010
1 1 1 1 1 - Character
001011
0 0 1 0 0 - Pattern
0000*001
001100
1 1 1 1 1 - Example (2)
001101
00100
001110
00100
001111
0 0 0 0 0 - Cursor position
*Don't Care
Notes:
a) Character code bits 0-2 correspond to CG RAM address bits 3-5 for a
total of 8 patterns.
b) CG RAM address codes 0-2 designate character pattern line. The 8th
line is the cursor position. It is logically "OR'ed" with the cursor
instruction.
c) Character patterns are loaded into CG RAM data bits 0-4 as shown in the
table. (Bit 4 is the left side). Since CG RAM bits 5-7 are not used, they
may be used for general data RAM.
d) CG RAM patterns are displayed on the LCD when character code bits 4-7
are all "0". Bit 3 is a don't care bit. Therefore, character pattern (1) can
be selected with character code 00H or 08H.
e) "1" in the character pattern turn a dot "ON". "0" indicates a non-selected
dot.
User's Manual Version 1.1 November 1, 1999
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