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M35061 数据表(PDF) 24 Page - Renesas Technology Corp

部件名 M35061
功能描述  SCREEN CHARACTER and PATTERN DISPLAY CONTROLLERS
PDF  40 Pages
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制造商  RENESAS [Renesas Technology Corp]
网页  http://www.renesas.com
标志 RENESAS - Renesas Technology Corp

M35061 数据表(HTML) 24 Page - Renesas Technology Corp

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SCREEN CHARACTER and PATTERN DISPLAY CONTROLLERS
M35061-XXXSP/FP
MITSUBISHI MICROCOMPUTERS
(3) Compounding character ROM and SYRAM
You can compound characters in character ROM with SYRAM.
The compounding method is determined by the SYEX color ex-
pansion bit and the HIDE register (address 2AA16).
For dot lines where SYEX = 0, the SYRAM color is set by the dis-
play RAM’s SR, SG, and SB irrespective of the HIDE register’s
content.
If the HIDE register’s content is 0, the SYRAM color for dot lines
where SYEX = 1 is set by the LINER, LINEG, and LINEB regis-
ters (address 2AC16).
If the HIDE register’s content is 1, the character ROM part of the
dot lines where SYEX = 1 is overwritten in HIDE mode with colors
set by the LINER, LINEG, and LINEB registers irrespective of the
ROM’s content and color. The color of the SYRAM part is set by
the display RAM’s SR, SG, and SB as in the case of dot lines
where SYEX = 0.
Figure 10 shows an example for each instance of compounding.
LINER,
LINEG,
LINEB
Fig. 10 Compounding example
When HIDE = 1, the character ROM’s contents for dot lines where SYEX = 1 become invisible.
SYRAM
Contents of
register HIDE
0 (normal mode)
1 (HIDE mode)
Ex. 1
Ex. 2
SR,
SG,
SB
SYEX
0
0
0
0
0
0
0
0
0
0
0
0
0
SR,
SG,
SB
SYEX
0
0
0
0
0
0
0
0
0
0
0
0
0
SYEX
1
1
1
1
1
0
0
0
0
0
0
0
0
SR,
SG,
SB
LINER,
LINEG,
LINEB
SR,
SG,
SB
SYEX
1
1
1
1
1
0
0
0
0
0
0
0
0
Compounding
Character ROM



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