LC7872E Datasheet, PDF (10/17 Pages) Sanyo Semicon Device – CD Graphics Decoder

LC7872E
Continued from preceding page.
Pin No.
51
52
53
54
55
56
57
58
59
60
61
62
63
64
Symbol
FSX
DEN
PALID
HRESET
FSC
VRESET
RESET
N/P1
N/P2
SON
XIN2
XOUT2
XIN1
XOUT1
I/O
Function
O Error state monitor trigger
High: BGC
I Disk information display enable pin _{Low: Enable} (pull-down resistor built in)
I Superimposition PAL mode external control (pull-up resistor built in)
I Horizontal timing external control
O Subcarrier clock output
NTSC mode: 3.579545 MHz
PAL mode: 4.433619 MHz
I Vertical timing external control
I Reset input
I NTSC/PAL selection
High: NTSC
Low: PAL ^{(RGB encoder)}
I NTSC/PAL selection
High: NTSC
Low: PAL ^{(CD-G decoder)}
I Superimposition on/off
I Crystal oscillator connection 17.734476 MHz (PAL)
O Crystal oscillator connection 17.734476 MHz (PAL)
I Crystal oscillator connection 14.31818 MHz (NTSC)
O Crystal oscillator connection 14.31818 MHz (NTSC)
CD-G Instructions
The LC7872E supports the following instructions that appear in the R to W subcodes as described in the CD Red Book.
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)
No. 4868-10/17