Grass Valley Switcher Products - Manual (Page 36)

36 Switcher Products — Protocols Manual
Section 1 — Tally Protocol
This differs from the Kalypso/Zodiak protocol in the following ways:
• There is one eDPM with 4 output channels
• The A and B contributions are in separate bytes. This is the one place in
the new protocol where extra bytes are used to allow the sync
byte(0xFF) to be unique. It would have been possible to combine A and
B input contributions into one byte but that would leave the possibility
that a data byte would be 0xFF, the same as the sync byte.
Image Store Contribution Information
The Kayenne still store is configured into three channels with two inputs
and two outputs each. Inputs and Outputs can be configured as two inde-
pendent video signals or as video-key pairs. The mode for each channel
input and output is indicated by mode flags. The record flag indicates
whether or not each input is in use.
This differs from the Kalypso/Zodiak protocol in the following ways:
• There are three channels (6 outputs) for the Image Store.
• The input modes and output modes are in separate bytes.
• The Image Store tally is channel oriented.
Output Status
Kayenne has 48 programmable outputs. An output can be programmed as
either an aux bus or as a dedicated output for an ME. From a tally stand-
point, only the source selected in each output is significant.
Table 15. Image Store Contribution Information
b7 b6 b5 b4 b3 b2 b1 b0 Notes Off set
Command Code 1 (0xF) Image Store Contribution (0xA) Message code 0
Command Code 2 (0xF) Image Store (1) Message code 1
Input 1A Source (1-146) 2
Input 1B Source (1-146) 3
Input 2A Source (1-146) 4
Input 2B Source (1-146) 5
Input 3A Source (1-146) 6
Input 3B Source (1-146) 7
0
Ch 3
Rec
Ch 2
Rec
Ch 1
Rec
0
Ch 3
mode
Ch 2
mode
Ch 1
mode
Input Mode (0 = VV, 1 = VK) and
record state
8
0 0 0 0 0
Out 3
mode Out 2
mode Out 1
mode
Output Mode (0 = VV, 1 = VK) 9