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Corio 2 IR codes
Question
ID
243
Category
C2 Product Family (excludes 770, 4000, and 5000 series)
Date Created
21/05/2009 14:51:32
Date Updated
21/05/2009 14:54:36
What are the IR codes for my Corio product?
Answer
The protocol is from the NEC infra-red RC5 standard.

1) It is based on sending a byte, call it A, for the type of equipment (the vendor and model code)
2) The logical inverse, ~A
3) Then a byte for the key pressed, call it B.
4) Then the logical inverse of this ~B.

Altogether the code will be be of the form: A,~A,B,~B

The start pulse, timing and repeat key signals are all typical for the standard.

The key pressed codes are allocated by the position on the pad.
The LABELS on the typical pad follow this pattern:

RESET STORE
1 2 3
4 5 6
AUTOSET RESTORE LOCK
???? POS FILTER
NORMAL GENLOCK PIP
UP
LEFT PAN RIGHT
DOWN

ZOOM SHRINK FREEZE

For some features AUTOSET is replaced with label 7, RESTORE with 8 and LOCK with 9.

For these positions the following codes are allocated (shown in hex):

0x0F 0x1F
0x15 0x17 0x0E
0x00 0x01 0x02
0x03 0x04 0x05
0x06 0x07 0x08
0x11 0x09 0x16
0x0A
0x0D 0x19 0x0C
0x0B
0x13 0x10 0x1A

The vendor/model code is 0x10.

The data is sent least significant bit of byte first.

So for the key laebelled STORE with a code of 0x1F (decimal 31), the information sent will be:

0x10 0xEF 0x1F 0xE0 (binary is 00010000 11101111 00011111 11100000)

In summary:
ID is 0x10
Key table is:
LABEL HEX CODE
RESET 0x0F
STORE 0x1F
1 0x15
2 0x17
3 0x0E
4 0x00
5 0x01
6 0x02
AUTOSET 0x03
RESTORE 0x04
LOCK 0x05
???? 0x06
POS 0x07
FILTER 0x08
NORMAL 0x11
GENLOCK 0x09
PIP 0x16
UP 0x0A
RIGHT 0x0C
LEFT 0x0D
DOWN 0x0B
PAN 0x19
ZOOM 0x13
SHRINK 0x10
FREEZE 0x1A
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