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