ST7920-0C View Datasheet(PDF) - Sitronix Technology Co., Ltd.
Part Name
Description
MFG CO.
'ST7920-0C' PDF : 49 Pages View PDF
ST7920
DDRAM data CGRAM CGRAM data CGRAM data
(char. code)
Addr. (higher byte) (lower byte)
BB BBBBBBB BDDDDDDDDDDDDDDDD
B15~ B4 3 2 1 0 5 4 3 2 1 0 1 1 1 1 1 1 9 8 7 6 5 4 3 2 1 0
543210
000 0 00000100 01100000
000 1 11111110 01000000
001 0 00010000 01000100
001 1 00010000 01111110
010 0 00100100 10000100
010 1 00111100 10000100
011 0 01100101 01001000
0
X 00 X 00 0 1 1 1 1 0 1 0 0 1 1 0 0 1 0 0 1 0 0 0
100 0 00100100 01010000
100 1 00100100 00010000
101 0 00100100 00100000
101 1 00111100 00100000
110 0 00100100 01000000
110 1 00000000 10000000
111 0 00000001 00000000
111 1 00000000 00000000
000 0 00001100 00000110
000 1 00011010 00000100
001 0 00100001 00110100
001 1 01011101 10100100
010 0 10000000 10100100
010 1 01111111 00100100
011 0 01000001 00100100
0
X 01 X 01 0 1 1 1 0 1 1 1 1 1 1 1 0 0 1 0 0 1 0 0
100 0 01000001 00100100
100 1 01111111 00100100
101 0 01000000 00100100
10110111111110 00100
110 0 10100000 10100100
110 1 10111111 10011100
111 0 10100000 10001000
111 1 00000000 00000000
Table 5: DDRAM data (character code) vs. CGRAM data/address map
Note:
1. DDRAM data (character code) bit1 and bit2 are identical with CGRAM address bit4 and bit5.
2. CGRAM address bit0 to bit3 specify total 16 rows. Row-16 is for cursor display. The data in Row-16 will be logically OR to the cursor.
3. CGRAM data for each address is 16 bits.
4. To select the CGRAM font, the bit4 through bit15 of DDRAM data must be “0” while bit0 and bit3 are “don’t care”.
V4.0
13/49
2008/08/18
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