Kodak 9020/CINE service manual Command Structure, Aaaaa MM Cccc Xxxd Xxxxxxxd

Service Manual SM 2547-1

Command Structure

The Command Structure is binary coded with three consecutive 8-bit bytes. Synchronization is achieved by a break in the transmission of more than three byte times. The first five bit of each command specifies the address of the selected projector.

The 16 hardware addresses are 0-F (hex).

The address 1F (hex) is a global address that all connected projectors will accept. Several projectors can be combined in a group by assigning them a special group address of 10 - 19 hex with a software command. Note, global or group addresses are separate from the position that is selected on the address switch.

Three 8-bit bytes:
AAAAA MM 1		CCCC XXXD	XXXXXXXD
1.	Byte	2. Byte	3. Byte
AAAAA		address of projector
MM		selects command mode
CCCC		commands depending on selected mode

XXXXXXXX XXX commands or information depending on selected mode

An example of command modes is:

-	parameter mode	00
-	set/reset mode	01
-	direct mode	10
-	status request mode	11	In this mode, the projector returns (10 bit) data.
			This mode can be used for diagnostics purposes.

Details can be obtained from special marketing literature.

03/98 3-18 Kodak AG, Stuttgart