Grass Valley 8949SVM-LOC - Manual (Page 39)

8949SVM-LOC/-UMD—Instruction Manual 39
TSL Protocol Version 4.0
TSL Protocol Version 4.0
The following section describes TSL protocol version 4.0 in Table 6 and
Table 7 .
Table 6. Version 4.0 Byte Offsets and Functions
Byte Offset Function
0 Unit ID
1 Tally Control
2-17 UMD Text
18 Checksum
19 VBC
20 XBYTE1
21 XBYTE2
Table 7. 4.0 Protocol Description
Unit ID Unit Level Addressing for Multicast Data
(Bit 7) Must be 1
(Bit 6..0)
Unit addresses are in range 0...126. The value of 127 is taken to address all
units (to which the packets are delivered). Unit address is controlled by the
Multicast ID set through the paddle switch controls.
Tally Control
(Bit 7) Must be 0
(Bit 6) Must be 0
(Bit 5..4) Not Used
(Bit 3..2) Not Used
(Bit 1..0) Not Used
UMD Text 16 Characters
UMD text characters includes the standard ASCII character set along with an Extended Character
set described in
Extended Character Set on page 37 .
Checksum Ignored
VBC Must be 0x02 interpreted as minor Version 0, extra data length 2
XBYTE1
(Bit 7) Must be 0
(Bit 6) Must be 0
(Bit 5) Left Hand Tally MSB
(Bit 4) Left Hand Tally LSB
(Bit 3..2) Ignored
(Bit 1) Right Hand Tally MSB
(Bit 0) Right Hand Tally LSB
Note: 2-bit Tally values are used as follows: 0: Off; 1: Red; 2: Green; 3: Off
XBYTE2 Ignored