Repeater Actions Required By External Controller - Analog Devices Advantiv ADV7604 Hardware Manual

KSV_LIST_READY, Repeater Map, Address 0x77, [7]
The KSV_LIST_READY
ADV7604 on-chip EDID/Repeater controller that the KSV List registers have been updated. When
KSV_LIST_READY
SHA-1 hash value V', updates the corresponding V' registers (refer to
READY bit (i.e. BCAPS[5]) to 1. This indicates to the transmitter attached to the ADV7604 that the
KSV FIFO and SHA-1 hash value V' are ready to be read.
Function
KSV_LIST_READY
0
1
7.20.1.4 HDMI Mode
The BSTATUS[12] bit is updated automatically by the ADV7604 and follows the HDMI mode
status of the HDMI/DVI stream input on the active HDMI port. BSTATUS[12] is set to 1 if the
ADV7604 receives an HDMI stream, and set to 0 if the ADV7604 receives a DVI stream.

7.20.2 Repeater Actions Required by External Controller

The external controller must set the BCAPS register and notify the ADV7604 when the KSV list is
updated, as described in Section
Note that many more routines must be implemented into the external controller driving the
ADV7604 to implement a full repeater. Such routines are described in the HDCP and HDMI
specifications (e.g. copying InfoFrame and packet data image from the HDMI receiver into the
HDMI transmitter, momentary de-asserting the hot plug detect and disabling the clock termination
on a change of downstream topology, and so on).
7.20.2.1 Repeater Bit
The REPEATER bit (i.e. BCAPS[6]) must be set to 1 by the external controller in the routine that
initializes the ADV7604. The repeater bit must be left as such as long as the ADV7604 is configured
as the front end of a repeater system.
Note: The registers in the KSV list (refer to
bit is set to 0. The firmware running on the external controller, therefore, always sets the registers in
the KSV list to 0x0 if the repeater bit is changed from 1 to 0.
Rev. F August 2010
bit is set by an external controller driving the ADV7604 to notify the
is set to 1 after an AKSV update, the EDID/Repeater controller computes the
Description
KSV list not updated. KSV_LIST_READY reset to 0 when ADV7604
powered up or after the ADV7604 has completed the computation of
the SHA-1 hash value V'
KSV list updated.
7.20.2.1 to Section 7.20.2.4.
Table 30) should always be set to 0x0 if the
175
ADV7604
Table 31), and sets the
REPEATER