I2C(also IIC; the "2" is superscripted) Inter-Integrated Circuit Bus -- A moderate-speed serial communications bus originally invented by Philips in the early 1980s for consumer-electronics applications, such as inter-chip communication in a television set or high-end stereo.	 The I2C bus has recently appeared on PCs in video capture boards and similar devices, as well as (surprisingly) SDRAM DIMMs (for the on-board serial EEPROM).  The ACCESS.bus is a derivative of the I2C bus which forms the physical layer of the Universal Serial Bus.	 Similary, the SMBus (System Management Bus) also uses I2C as its physical layer. 9Ch/06h - Philips SAA7110(A) ONE-CHIP FRONT-END - LUMINANCE CONTROL
Access:	Write-Only
SeeAlso: I2C(also IIC; the "2" is superscripted) Inter-Integrated Circuit Bus -- A moderate-speed serial communications bus originally invented by Philips in the early 1980s for consumer-electronics applications, such as inter-chip communication in a television set or high-end stereo.	 The I2C bus has recently appeared on PCs in video capture boards and similar devices, as well as (surprisingly) SDRAM DIMMs (for the on-board serial EEPROM).  The ACCESS.bus is a derivative of the I2C bus which forms the physical layer of the Universal Serial Bus.	 Similary, the SMBus (System Management Bus) also uses I2C as its physical layer. 9Eh,I2C(also IIC; the "2" is superscripted) Inter-Integrated Circuit Bus -- A moderate-speed serial communications bus originally invented by Philips in the early 1980s for consumer-electronics applications, such as inter-chip communication in a television set or high-end stereo.	 The I2C bus has recently appeared on PCs in video capture boards and similar devices, as well as (surprisingly) SDRAM DIMMs (for the on-board serial EEPROM).  The ACCESS.bus is a derivative of the I2C bus which forms the physical layer of the Universal Serial Bus.	 Similary, the SMBus (System Management Bus) also uses I2C as its physical layer. 9Ch/07h


Bitfields for Luminance Control:
Bit(s)	Description	(Table I0071)
 7	chrominance trap bypass (=0 CVBS mode, =1 S-Video mode)
 6	prefilter
 5-4	aperture bandpass; centre frequency
	     (50 Hz)  (60 Hz)
	00   4.6 MHz  3.8 MHz
	01   4.3 MHz  3.4 MHz
	10   3.0 MHz  2.5 MHz
	11   3.2 MHz  2.7 MHz
 3-2	corner correction
	00   0(off)
	01   1
	10   2
	11   3
 1-0	aperture factor
	00   0(off)
	01   0.25
	10   0.5
	11   1.0