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/10h - Philips SAA7110(A) ONE-CHIP FRONT-END - CONTROL #2
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


Bitfields for Control Number 2:
Bit(s)	Description    (Table I0080)	(Table I0081)
 7-3	reserved (must be set to LOW)
 2-1	vertical noise reduction mode
	00  normal
	01  search
	10  free running
	11  bypass vertical noise reduction
 0	HREF select
	0  HREF matched to YUVA color specification mechanism used in NTSC-type color television signals.  Y represents luminance (overall brightness, the only part of the signal used by black-and-white televisions), while U and V are chrominance (color) information.  Also called YIQ.  See also RGB. output
	1  HREF matched to CVBS output