IN1804 Seamless Scaling Switchers • SIS Configuration and Control 56
X4%
= Video switch effect
0 = Cut through black — The input instantly cuts
to black, then cuts to the newly selected input with
no fading.
1 = Fade through black — The input fades to black
before the newly selected input fades in.
2 = Seamless fade* (default) — Displays a final frozen
frame of the previous input while the newly selected
input fades in.
3 = Seamless cut* — The last frame of video freezes on
the screen, then cuts to the newly selected input.
*See Input Switch Effect on page 39 for information on
exceptions regarding Seamless effects.
X4^
= HDCP output mode
0 = Off — Disable all HDCP authentication and encryption
attempts.
1 = Follow input (default).
2 = Always encrypt.
3 = Follow input (with continuous authentication trials).
4 = Always encrypt (with continuous authentication trials).
X4&
= HDCP notification
0 = Black screen — Notification disabled (mute output)
1 = Green screen with OSD bug (orbiting message)
(default)
2 = User image with black screen background
X4*
= HDMI output format
0* = Auto — HDMI RGB Full to a CEA sink, DVI to a
non-CEA sink***
1* = DVI — RGB 444, 0-255. Valid for output rates up to
165 MHz.
2 = HDMI RGB Full — RGB 444
3 = HDMI RGB Limited — RGB 444
5 = HDMI YUV 444 Limited — YUV 444
7 = HDMI YUV 422 Limited — YUV 422
9** = HDMI YUV 420 Limited — Used for transmitting
4K @ 60 Hz at a 4K @ 30 Hz character rate.
* If the IN1804 is in DVI mode and a rate greater than
165 MHz is selected, the HDMI output defaults to
HDMI RGB 444 Full.
** 420 formats are available only when the current HDMI
output resolution is 4K/UHD @ 50, 59.94, or 60 Hz
and use half the TMDS character rate.
If
X4*
is set to 9 and the output rate is changed to a
rate other than 4K/UHD @ 50, 59.95, or 60 Hz,
X4*
is automatically set to 0, and an SIS response is
broadcast.
*** DVI mode applies only up to a 165 MHz pixel clock.
X5)
= Audio output volume
-100 to 0 in 1 dB steps
Example: -100 = -100 dB and 0 = 0 dB
Default = -10
Response is three digits with a leading + or – sign.
X5!
= Audio output format
1 = Dual mono
2 = Stereo (default)
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