Intel E3815 FH8065301567411 Data Sheet

 

Intel

®

 Atom™ Processor E3800 Product Family

Datasheet

663

CRT port control (dprrega.v crt_dfx)

17

0b

RW

Project: All  

Default Value: 0b  

Value Name Description Project  

0b 325mv 325mv All  

1b 475mv 475mv (bits 19:18 must be = 11) All 

16

0b

RW

Project: All  

Default Value: 0b  

Triggers a CRT hotplug/unplug detection cycle independent of the hot plug detection 

enable bit. This bit is automatically cleared after the detection is completed. The result 

of this trigger is reflected in the CRT Hot Plug Detection Status. Software must reset 

status after a force CRT detect trigger.  

Value Name Description Project  

0b No Trigger No Trigger All  

1b Force Trigger Force Trigger All 

15:10

0b

RW

Project: All Format: 

9:5

0b

RW

Project: All  

Default Value: 0b  

This controls CRT output voltage trimming to ensure the output voltage is withing VESA 

spec. 

4

0b

RW

Project: All  

Default Value: 0b  

The output VSYNC polarity is controlled by this bit. This is used to implement display 

modes that require inverted polarity syncs and to set the disabled state of the VSYNC 

signal.  

Value Name Description Project  

0b Low Active Low All  

1b High Active High All 

3

0b

RW

Project: All  

Default Value: 0b  

The output HSYNC polarity is controlled by this bit. This is used to implement display 

modes that require inverted polarity syncs and to set the disabled state of the HSYNC 

signal.  

Value Name Description Project  

0b Low Active Low All  

1b High Active High All 

2

0b

RW

Project: All Forma 

1

0b

RW

Project: All Forma  

Monochrome Enable: [DevVLVP] If the CRT display is a monochrom type, SW driver 

shall set this bit to enable the CRT circuit to drive only the green channel to CRT and 

gate off the red and blue channels. 0 = Monochrome disabled (default) 1 = Monochrome 

enabled 

0

0b

RW

Project: All Forma  

Monochrome Enable: [DevVLVP] If the CRT display is a monochrom type, SW driver 

shall set this bit to enable the CRT circuit to drive only the green channel to CRT and 

gate off the red and blue channels. 0 = Monochrome disabled (default) 1 = Monochrome 

enabled  

0 = 1.35V is used for analog supply voltage (default) 1 = 1.25V is used for analog 

supply voltage