Free Run Feature In Hdmi Mode; Figure 105: Free Run Field Length Selection For Channel 1 And Channel 2 - Analog Devices Advantiv ADV7604 Hardware Manual

Function
CH2_FR_FIELD_L
ENGTH[10:0 ]
000 00000000
B
All other values
Function
INTERLACED
0
1

Figure 105: Free Run Field Length Selection for Channel 1 and Channel 2

10.13.2 Free Run Feature in HDMI Mode

This section describes how to configure the free run feature when the ADV7604 is in HDMI mode.
The ADV7604 HDMI mode is defined in
There are two free run modes in HDMI: free run mode 0 and free run mode 1. The
HDMI_FRUN_MODE
• HDMI free run mode 0:
The decoder enters free run when the TMDS clock is not detected, for example, in a cable
disconnect situation.
• HDMI free run mode 1:
The decoder enters free run when the TMDS clock is not detected or when the detected input
format does not match the format dictated by the
settings.
For either free run mode to be implemented, HDMI free run operation must be enabled. This is done
via the HDMI_FRUN_EN
Rev. F August 2010
Description
Uses same ideal number of lines reference as channel 1 as dictated by
CP_LCOUNT_MAX[11:0]
Uses programmed value as ideal number of lines per field in free run
decision for channel 2
Description
Expected video mode is progressive
Expected video mode is interlaced
Section
control selects which free run mode is enabled.
control.
4.
PRIM_MODE[3:0]
303
ADV7604
and VID_STD[5:0]