Frs-hd-xmux4 rev. c – Nevion FRS-HD-XMUX4 User Manual

Page 30

Advertising
background image

FRS-HD-XMUX4

Rev. C


nevion.com | 30

track selects whether AES delay
tracks the video delay.

aprc

0-11 lr |

rl |
ll |
rr |
nlr |
lnr |
mm |
ms |
lvl <gain>

aprc 0 lr
aprc 3 ll
aprc 6 mm
aprc 7 lvl -400

lr |
rl |
ll |
rr |
nlr |
lnr |
mm |
ms

Audio processing
one block for each output from cho 2-
13. The meaning of the commands
are as follows:
lr = Normal
rl = Channel swapped
ll = Left channel to both output
channels
rr = Right channel to both output
channels
nlr = Left channel phase inverted
lnr = Right channel phase inverted
mm = Mono, both channels = (r+l)/2
ms = Mono/stereo, m=(l+r)/2, s=(l-r)/2
lvl means level and is the gain
setting.

supr

0

en | dis | auto
lb <page> <L1>
<L2>…<L16>
font <tag>

supr 0 auto
supr 0 lbl 0 65 66 67 0
supr 0 font 1252

Supr 0 en font 0x4e4
lb 0 86 73 68 69 79
10 76 65 66 69 76

Label generator
A label generator can be
superimposed on the video. The
setting ‘en’ means it is always
superimposed, ‘dis’ means it is never
superimposed, and ‘auto’ means it is
superimposed on the internal video
generator only.
The text in the label can be set or
modified by the lb <page> sub-
command, where page is 0 to
operate on letters 1-16 or 1 to
operate on the letters 17-32.
The letters follow as a string of ASCII
numbers. To write more than 16
letters, two commands must be
issued. A string is always terminated
at an ASCII 0, and ASCII 10 is
linefeed/new line. Only the first ASCII
10 will be honored.
In the second example command, the
label string is set to ‘ABC’ and
terminated with ASCII 0. If not
t

erminated, the command would’ve

modified the first 3 letters of the
string, but any remains of a previous
string would still be present (until
ASCII 0 or 33

rd

letter encountered).

Note 1: When the flash is busy
programming the FPGA or is being
programmed with new FPGA code,
label information can not be updated.

Note 2: At the present, only one
font/codepage (codepage 1252) is
included in the module.

Advertising