7220 datasheet(262/303 Pages) RENESAS

262 / 303 page

7220 Group User’s Manual

APPENDIX

6.7 Control registers

6-43

b7 b6 b5 b4 b3 b2 b1 b0

CRT port control register (CRTP) [Address 00EC16]

Name

Functions

After reset R W

CRT Port Control Register

0HSYNC input polarity

switch bit (HSYC)

0 : Positive polarity

1 : Negative polarity

0 : Positive polarity

1 : Negative polarity

R, G, B output polarity

switch bit (R/G/B)

0 : Positive polarity

1 : Negative polarity

OUT2 output polarity

switch bit (OUT2)

0 : Positive polarity

1 : Negative polarity

R signal output switch bit

(OP5)

0 : R signal output

1 : MUTE signal output

G signal output switch bit

(OP6)

0 : G signal output

1 : MUTE signal output

B signal output switch bit

(OP7)

0 : B signal output

1 : MUTE signal output

VSYNC input polarity

switch bit (VSYC)

OUT1 output polarity

switch bit (OUT1)

0 : Positive polarity

1 : Negative polarity

0R W

Note : M37220M3-XXXSP/FP

(See note)

Nothing is assigned. This bit is a write disable bit.

When this bit is read out, the value is “0.”

R—

OUT output polarity

switch bit (OUT)

0 : Positive polarity

1 : Negative polarity

0R W

Fig. 6.7.20 CRT port control register

Address 00EC16

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