9
K R A M E R
E lectron ics
MATRIX ROUTING SWITCHER
2
nd
BYTE
:
Bit 7 – Defined as 1.
D6…D0 – “INPUT or DATA”.
When switching (ie. instruction codes 1 and 2), the INPUT (MSB + 7 bits) is set as the input
number which is to be switched. For other operations, these bits are defined according to the
table.
3
rd
BYTE
:
Bit 7 – Defined as 1.
A6…A0 – “OUTPUT or ADRESS”.
When switching (ie. instruction codes 1 and 2), the OUTPUT (7 bits) is set as the output
number which is to be switched. For other operations, these bits are defined according to the
table.
4
th
BYTE
:
Bit 7 – Defined as 1.
Bit 6 – Most Significant Bit (Bit A7) of the output byte.
Bit 5 – Most Significant Bit (Bit D7) of the input byte.
L4…L0 – LAYER NUMBER.
Used to address layers in a system via their layer numbers. When several layers (video,
audio, YC, YUV, RGBHV) are controlled from a single serial port in a same machine, they
are usually configured separately having an individual layer number.
TABLE OF INSTRUCTION CODES FOR PROTOCOL 2000TM
Notes: All values in the table are decimal, unless otherwise stated as Hexadecimal (xxh).
INSTRUCTION
DEFINITION FOR SPECIFIC INSTRUCTION
Layer Note
SEND
REPLY
Hex
Dec Hex Dec
DESCRIPTION
INPUT / DATA_1
OUTPUT / ADRESS /
DATA_2
Hex
VIDEO
81h 1
Y / C
82h 1
YUV
83h 1
01h 1 41h 65
RGBHV
85h 1
02h 2 42h 66
SWITCH
AUDIO
Set equal to video input
number (+ 80h) which is to be
switched
(80h = disconnect)
Equal to output number
(+ 80h) which is to be switched
81h 1
VIDEO
81h 2
Y / C
82h 1
YUV
83h 1
05h 5 45h 69
RGBHV
85h 1
06h 6 46h 70
REQUEST
STATUS OF
AN
OUTPUT
AUDIO
80h
Equal to output number
(+ 80h) whose status is
requested
81h 2
10h 16 50h 80
ERROR / BUSY
80h
80 - Error
81 - Invalid Instruction
82 - Out of range
83 - Machine busy
84 - No card
85 - Address out of range
86 - Data out of range
87 - Machine busy
81h 3
11h 17 51h 81
RESERVED
- - - -
- - - -
81h
15h 21 55h 85
SET AUDIO Output VCA
Equal to output number (+
80h) whose VCA is to be set
Set as VCA value (32 steps) :
Dec : 128 to 159
Hex : 80h to 9Fh
81h 1,4
