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CRT Port Control Register
b7 b6 b5 b4 b3 b2 b1 b0
Fig. 6.7.20 CRT port control register
CRT port control register (CRTP) [Address 00EC
B
Name
0
H
input polarity
SYNC
switch bit (HSYC)
1
V
input polarity
SYNC
switch bit (VSYC)
2
R, G, B output polarity
switch bit (R/G/B)
3
OUT2 output polarity
switch bit (OUT2)
4
OUT1 output polarity
switch bit (OUT1)
5
R signal output switch bit
(OP5)
6
G signal output switch bit
(OP6)
7
B signal output switch bit
(OP7)
Note : M37220M3-XXXSP/FP
3
Nothing is assigned. This bit is a write disable bit.
When this bit is read out, the value is "0."
4
OUT output polarity
switch bit (OUT)
7220 Group User's Manual
]
16
Functions
After reset R W
0 : Positive polarity
1 : Negative polarity
0 : Positive polarity
1 : Negative polarity
0 : Positive polarity
1 : Negative polarity
0 : Positive polarity
1 : Negative polarity
0 : Positive polarity
1 : Negative polarity
0 : R signal output
1 : MUTE signal output
0 : G signal output
1 : MUTE signal output
0 : B signal output
1 : MUTE signal output
0 : Positive polarity
1 : Negative polarity
APPENDIX
6.7 Control registers
0
R W
0
R W
0
R W
0
R W
(See note)
0
R W
0
R W
0
R W
0
R W
0
R —
0
R W
Address 00EC
16
6-43
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