7220 datasheet(59/303 Pages) RENESAS

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2-32

7220 Group User’s Manual

FUNCTIONAL DESCRIPTION

2.5 Interrupts

Fig. 2.5.7 Interrupt input polatiry register (address 00F916)

Fig. 2.5.8 CRT port control register (address 00EC16)

b7 b6 b5 b4 b3 b2 b1 b0

CRT port control register(CRTP) [Address 00EC 16]

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

OUT1 output polarity

switch bit (OUT1)

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)

b7 b6 b5 b4 b3 b2 b1 b0

Interrupt input polarity register(RE) [Address 00F9 16]

Name

Functions

After reset

R W

Interrupt Input Polarity Register

INT1 polarity switch bit

(RE3)

1, 2

0 : Positive polarity

1 : Negative polarity

0 : Positive polarity

1 : Negative polarity

0 : Positive polarity

1 : Negative polarity

INT2 polarity switch bit

(RE4)

INT3 polarity switch bit

(RE5)

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

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

Fix these bits to “0.”

Fix this bit to “0.”

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

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

Indeterminate

R—

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