IT6605
The serial programming interface for interfacing the micro-controller is a slave interface, comprising
PCSCL (Pin 27) and PCSDA (Pin 26). The micro-controller uses this interface to monitor all the
statuses and control all the functions. Two device addresses are available, depending on the input
logic level of PCADR (Pin 105). If PCADR is pulled high by the user, the device address is 0x92. If
pulled low, 0x90.
Since the IT6605 provides two HDMI input ports, two DDC I2C interface are present at DDCSCL0 (Pin
34) & DDCSDA0 (Pin 33) and DDCSCL1 (Pin 29) & DDCSDA1 (Pin 28). With the interfaces, the
IT6605 responds to the access of HDMI Sources via the DDC channels. HDMI Sources use the
interfaces to perform HDCP authentication with the IT6605.
All serial programming interfaces conform to standard I2C transactions and operate at up to 100kHz.
Feb-2012 Rev:0.92 14/38
www.ite.com.tw
ITE [ ITE TECH.INC. ]
