Set_key (set keyer related parameters) – Grass Valley Maestro Master Control Reference Manual v.2.4.0 User Manual
Page 75
MAESTRO — Automation Interface Protocol Technical Reference Manual
75
SET_KEY (Set keyer related parameters)
SET_KEY (Set keyer related parameters)
Hex definition
Mnemonic
E0
SET_KEY
Command format:
SET_KEY
Query format:
READ SET_KEY
Reply format:
IFRE SET_KEY
Use applicable with UPDATE:
Yes
Argument definitions:
<
keyer> = 7, 8
7 = Keyer 1
D_KEY1
8 = Keyer 2
D_KEY2
<video src> = 0, 0x01-0xFF
0 = video source NOP
IF_NULL
0x01-0xFF = Input source numbers 1 through 255 (list sources with autoXptSelectionShow pROBE
command)
0xFF = 255 is used to select the Direct Input
<key mix bus>:
B7 =
Must be set for key/mix selection and PST key/mix enable in commands. Indicates key/mix is on PST
for replies.
B6 =
Must be set for key/mix selection and PGM key/mix enable in commands. Indicates key/mix is on PGM
for replies.
B5 =
Indicates key is to be removed from busses indicated by B7 & B6. Don't care for replies.
B4 - B0 = reserved
<key type> = 0, 3, 5, 6
0 = Key Type NOP
IF_NULL
3 = Self Key
K_SELF
5 = External Key
K_EXT
6 = Chroma Key (not used by Saturn)
<invert mod> = 0, 2, 3
0 = Key Invert NOP
IF_NULL
2 = Invert Off
IF_OFF