GMS87C4060 Datasheet, PDF (64/102 Pages) Hynix Semiconductor – 8-BIT SINGLE-CHIP MICROCONTROLLERS

GMS81C4040/87C4060
PRELIMINARY
Bit No. &
Name
23 22 21 20
Output ( Polarity :
Through)
I
B
G
R
Y
M
Y
S
I
BGR
Back
ground
color
0000000000
Clear
0001010001
Red
0 0 1 0 0 1 0 0 1 0 Green
0 0 1 1 0 1 0 0 1 1 Yellow
0100010100
Blue
0 1 0 1 0 1 0 1 0 1 Magenta
0110010110
Cyan
0111010111
White
1000100000
Half
blanking
1 0 0 1 0 1 1 0 0 1 Half-I,Green
1010011010
Half-I,
Yellow
1 0 1 1 0 1 1 0 1 1 Half-I,Blue
1100011100
Half-I,
Magenta
1 1 0 1 0 1 1 1 0 1 Half-I,Cyan
1 1 1 0 0 1 1 1 1 0 Half-I,White
1111010111
Black
Table 17-7 VRAM (bit 23 ~ 20) function
Font ROM
The GMS81C4040/GMS87C4060 OSD character size is
fixed as 12dots (Horisontal) * 16dots (Vertical).
1. Each horisontal data (12dots) needs 2byte ROM.
2. One character is constructed with 16 horisontal data to
vertically. As a result, one character needs 32bytes (2 * 16
bytes).
3. GMS81C4040/GMS87C4060 contains 512 characters.
Total Font ROM memory size is calulated as 16,384bytes
( 32bytes / character * 512 character )
4. Font ROM memory is located from 10000_H ~ 13FFF_H,
this memory can not be accessed by user program.
Charact
er code
Address range
Upper 4bit
Lower 8bit
000_H
12000_H ~ 1200F_H
10000_H ~ 1000F_H
001_H
12010_H ~ 1201F_H
10010_H ~ 1001F_H
002_H
12020_H ~ 1202F_H
10020_H ~ 1002F_H
:
:
:
xyz_H
(12000H + xyz0H) ~ (10000H + xyz0H) ~
(12000H + xyzFH) (10000H + xyzFH)
:
:
:
1FD_H 13FD0_H ~ 13FDF_H 11FD0_H ~ 11FDF_H
1FE_H 13FE0_H ~ 13FEF_H 11FE0_H ~ 11FEF_H
1FF_H 13FF0_H ~ 13FFF_H 11FF0_H ~ 11FFF_H
Table 17-8 Font ROM memory map
5. A character’s address and dot position in font ROM is
described in Figure 17-12 .
Address Data
12530_H 00_H
12531_H 07_H
12532_H 08_H
12533_H 08_H
12534_H 08_H
12535_H 09_H
12536_H 0B_H
12537_H 08_H
12538_H 08_H
12539_H 08_H
1253A_H 08_H
1253B_H 08_H
1253C_H 08_H
1253D_H 08_H
1253E_H 07_H
1253F_H 00_H
MSB
LSB
Address Data
10530_H
10531_H
10532_H
10533_H
10534_H
10535_H
10536_H
10537_H
10538_H
10539_H
1053A_H
1053B_H
1053C_H
1053D_H
1053E_H
1053F_H
00_H
FE_H
01_H
61_H
F1_H
F9_H
FD_H
61_H
61_H
61_H
61_H
61_H
61_H
01_H
FE_H
00_H
Figure 17-12 Example for a character (53_H)
Sprite RAM
The GMS81C4040/GMS87C4060 contains a 32bytes
(12dot * 16dot) sprite RAM.
1. In view point, sprite is similar to character font but it is
not using font ROM.
2. You can selct color by dot unit.
3. Using above 1 and 2, you can make any of patterns what
you want by software. For example, arrow cursor or some-
60
PRELIMINARY
Nov. 1999 Ver 1.0