LC7871E Просмотр технического описания (PDF) - SANYO -> Panasonic

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производитель

LC7871E

CD Graphics Decoder

SANYO -> Panasonic 

LC7871E, 7871NE

CD-EG Instructions

Of the instructions in the R to W subcode described in the CD Red Book, the LC7871E and the LC7871NE support the

following:

1. MODE = 0, ITEM = 0: ZERO mode

2. MODE = 1, ITEM = 0: LINE GRAPHICS mode

• Write FONT instruction (4)

• Write Scroll SCREEN instruction (12)

3. MODE = 1, ITEM = 1: TV-GRAPHICS mode

• Preset MEMORY instruction (1)

• Preset BORDER instruction (2)

• Write FONT FOREGROUND/BACKGROUND instruction (6)

• Scroll SCREEN with preset instruction (20)

• Scroll SCREEN with Copy instruction (24)

• Load CLUT color-0...7 instruction (30)

• Load CLUT color-8...15 instruction (31)

• EXCLUSIVE-OR FONT instruction (38)

• Define color Transparency instruction (28)

4. MODE = 1, ITEM = 1 & 2: EXTENDED TV-GRAPHICS mode

• MEMORY Control instruction (3)

• Write additional FONT FOREGROUND/BACKGROUND instruction (6)

• EXCLUSIVE-OR additional FONT with 2 colors instruction (14)

• Load CLUT color instruction (16-47)

• Load CLUT additional color instruction (48-63)

Pin Applications

1. Crystal Clock Oscillator: Pins XIN1, XOUT1, XIN2, XOUT2, N/P1, N/P2, FSC, CSYNC, 2FSC and VSYNC

The XIN1 and XOUT1 pins are for use with a 14.31818 MHz (NTSC) crystal oscillator. The XIN2 and XOUT2 pins

are for use with a 17.734476 MHz (PAL) crystal oscillator. The LC7871E and LC7871NE provide the above two

crystal oscillator systems. Depending on the application, either a single crystal can be connected, or alternatively two

crystals can be used allowing control from both the N/P1 and the N/P2 pins. The N/P1 pin switches the RGB encoder

block between PAL and NTSC and the N/P2 pin switches the CD-G decoder block between PAL and NTSC. The

FSC and 2FSC pins output the crystal oscillator frequency divided by 4 and 2 (2/5 in PAL mode) respectively. The

CSYNC pin outputs a composite sync signal, and the VSYNC pin outputs a vertical sync signal.

The table below shows the pin outputs in the various modes.

XIN1, XOUT1

14.31818 MHz

*

14.30244 MHz

XIN2, XOUT2

*

17.734476 MHz

*

N/P1

H

L

L

N/P2

H

L

H

TV Standard

NTSC/M

PAL/GBIDH

PAL/M

FSC

3.579545 MHz

4.433619 MHz

3.575611 MHz

2FSC

7.15909 MHz

7.093790 MHz

7.15122 MHz

CSYNC

16.65155767 ms

20.09588555 ms

16.6698829 ms

No. 4861-11/19

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