Intel E3815 FH8065301567411 Data Sheet
Product codes
FH8065301567411
Intel
®
Atom™ Processor E3800 Product Family
Datasheet
457
14.10.11 MSR (MSR_READ)—Offset 3CCh
Miscellaneous Output
Access Method
Default: 00h
3
0b
RW
VSYNC_CONTROL:
This bit is provided for compatibility only and has no other
function. Reads and writes to this bit have no effect other than to change the value of
this bit. The previous definition of this bit selected the output on the VSYNC pin.
0 = Was used to set VSYNC out put on the VSYNC pin (default).
1 = Was used to set the log i cal 'OR' of VSYNC and Display Ena ble output on the
VSYNC pin. This capability was not typically very useful..
2:0
0b
RW
RESERVED_1:
Read as 0.
Bit
Range
Default &
Access
Field Name (ID): Description
Type:
Memory Mapped I/O Register
(Size: 8 bits)
Offset:
GTTMMADR_LSB Type:
PCI Configuration Register (Size: 32
bits)
GTTMMADR_LSB Reference:
GTTMMADR_LSB Reference:
[B:0, D:2, F:0] + 10h
7
4
0
0
0
0
0
0
0
0
0
CR
T_VS
Y
N
C_PO
LA
RITY
CR
T_HS
Y
N
C_PO
LA
_RITY
PA
G
E
_
S
E
LE
C
T
RES
E
RVE
D
CL
OC
K_
SE
LEC
T
A
0000
_BF
FFFH_MEMOR
Y_ACCES
S
_ENABL
E
I_O_ADD
R
ES
S_SE
LEC
T
Bit
Range
Default &
Access
Field Name (ID): Description
7
0b
RW
CRT_VSYNC_POLARITY:
This is a legacy function that is used in native VGA modes.
For most cases, sync polarity will be controlled by the port control bits. The VGA settings
can be optionally selected for compatibility with the original VGA when used in the VGA
native mode. Sync polarity was used in VGA to signal the monitor how many lines of
active display are being generated.
0 = Positive Polarity (default).
1 = Negative Polarity.
6
0b
RW
CRT_HSYNC_POLA_RITY:
This is a legacy function that is used in native VGA modes.
For most cases, sync polarity will be controlled by the port control bits. The VGA settings
can be optionally selected for compatibility with the original VGA when used in the VGA
native mode.
0 = Positive Polarity (default).
1 = Negative Polarity