Texas Instruments TVP5154EVM DM642 Control Window Controls, 2 DM642 Virtual I2C Register Map

www.ti.com

Programming the TMS320DM642

When the DM642 Control window is opened, all readable registers for the device are read from software to initialize the dialog page. Register details are given in Table 8. Values on the page are changed by manipulating the various dialog controls as described in Table 8. The data is organized for each of the four decoders, allowing independent control of each decoder.

	Table 8. DM642 Control Window Controls
CONTROL	DEFINITION
Read All	Reads all defined readable registers from the device and updates the register window.
	Causes all changes made to the page since the last Apply to be discarded. Changes made to dialog controls
	with ‘immediate register update’ are not discarded, since they have already been changed in the DM642
Close	registers.
	Does not write to registers.
	Closes the dialog.
Image Capture	Enables image capture in the DM642 for that given decoder (1–4). Immediate register update.
	Used to inform the DM642 of the input color standard for that given decoder (1–4). No change in register until
Video Standard	Apply is clicked.
	Does not change the video standard setting for the TVP5154.
	Used to inform the DM642 of the input image size for that given decoder (1–4). No change in register until Apply
Image Size	is clicked.
	Actual scaling is done in the TVP5154.
Image Position	Defines the quadrant location for the input of that given decoder (1–4). Immediate register update.
	Immediately changes DM642 registers for input image size and input color standard for that given decoder
Apply	(1–4).
	Enables TVP5154 scaler and programs correct scaling register settings into TVP5154 based on selected input
	standard and image size for that given decoder (1–4).
Flash	Reads the data from the Flash Version registers and writes it into the register window.
Major/Minor
LED Control	Changes LED (1–7) status. Checked: LED is ON. Unchecked: LED is OFF. Immediate register update.

9.2.2DM642 Virtual I2C Register Map

Table 9. DM642 Virtual I2C Register Map

REGISTER DESCRIPTION	ADDRESS	DATA (DEFAULT)
Decoder 1 Register	00h	02h
Decoder 2 Register	01h	12h
Decoder 3 Register	02h	22h
Decoder 4 Register	03h	32h
Decoder 1 Input Format Register	04h	01h
Decoder 2 Input Format Register	05h	01h
Decoder 3 Input Format Register	06h	01h
Decoder 4 Input Format Register	07h	01h
LED Control	08h	00h
Flash Version: Major	09h	01h
Flash Version: Minor	0Ah	00h

SLEU069A –February 2006 –Revised July 2006	TVP5154EVM User's Guide	27
Submit Documentation Feedback