LM1247 National Semiconductor, LM1247 Datasheet - Page 32

• Manufacturer Part Number: LM1247
• Description: 150 MHz I2C Compatible RGB Preamplifier with Internal 512 Character OSD ROM, 512 Character RAM and 4 DACs
• Manufacturer: National Semiconductor

www.national.com
Building Display Pages
Control Register Definitions
OSD INTERFACE REGISTERS
Frame Control Register 1:
Data Sent
0xBA
0xFE
0xBA
0xBA
0x2D
0x3F
0x0F
0x2A
0x2F
0x40
0x84
0x00
0x03
0x00
0x00
0x06
0x00
0x00
0x80
0x00
0x03
0x80
0x80
0x03
0x80
0x01
0x30
0x01
0x00
0x14
0x28
0x22
0x00
I
LM1247 Slave Write Address
Two-color attribute location 0 address LSB
Two-color attribute location 0 address MSB
Attribute Byte 1 of 4
Attribute Byte 2 of 4
Attribute Byte 3 of 4
Attribute Byte 4 of 4
Attribute Byte 1 of 4
Attribute Byte 2 of 4
Attribute Byte 3 of 4
Attribute Byte 4 of 4
I
I
Chip Address
Address LSB
Address MSB
Use Attribute 0x00 for the following characters
Skip 2 lines Command
Character “ ”
Character “ ”
I
I
Chip address
Address LSB
Address MSB
Use Attribute 1 for the “No”
Character “N”
Character “o”
End-of-Line (EOL)
Skip 0 lines
Character “S”
Character “i”
Character “q”
Character “n”
Character “a”
Character “l”
End-of-Screen (EOS) code
I
2
2
2
2
2
2
C start condition
C stop condition
C start condition
C stop condition
C start condition
C stop condition (See the Microcontroller Interface Section)
X
Reserved
X
(Continued)
TABLE 20. Example 3 I
X
Background (Color 0): Red = 000b, Green = 000b and
Blue = 000b.
Foreground (Color 1): Red = 111b, Green = 111b, Blue
Background (Color 0): Red = 111b, Green = 111b and
Blue = 111b.
Foreground (Color 1): Red = 000b, Green = 000b, Blue
= 111b, and Enhanced Feature = 0000b.
= 100b, and Enhanced Feature = 0000b.
FRMCTRL1 (0x8400)
trans
Description
TD
32
CDPR
clear
2
C Sequences
win2
D2E
win1
D1E
OSD
OsE
RAM Address
0x800C
0x800D
0x800A
0x800B
0x800E
0x800F
0x8440
0x8441
0x8442
0x8443
0x8444
0x8445
0x8446
0x8447
0x8000
0x8001
0x8002
0x8003
0x8004
0x8005
0x8006
0x8009