MN89201 Datasheet, PDF (5/11 Pages) Panasonic Semiconductor – VGA-NTSC Scan Converter

For Information Equipment
Pin Descriptions (continued)
Pin No.
Symbol
I/O
26
MOD422F
I
27
MODVFIL
I
28
MODHFIL
I
29
MODPIN
I
30
MINTEST
I
31 ,32 MON[1:0]
I
33
SXRST
I
34
MODCRCB
I
35
MODCHAV
I
MN89201
Function Description
Cr and Cb output mode specification
"L" level: Cr and Cb are both 8 bits (24-bit mode)
"H" level: Cr and Cb are multiplexed into 8 bits (16-bit mode)
The combined output is sent to CROUT[7:0].
The MODCRCB pin specifies the multiplex order.
This pin switches the vertical filter ON and OFF.
"L" level: OFF; "H" level: ON
This pin switches the horizontal filter ON and OFF.
"L" level: OFF; "H" level: ON
This pin selects the setting of the filter mode.
"H" level: Ignore mode register setting and take filter settings from
pins.
"L" level: Ignore pins and take filter settings from mode register.
Test pin Keep this pin at "L" level.
Test pin Keep this pin at "L" level.
This signal resets the synchronization counter only.
Active "H"
This pin specifies the bit order for multiplexed Cr and Cb output data
in the 16-bit mode.
"H" level: Cr before Cb
"L" level: Cb before Cr
This pin selects the default values for the parameter registers
determining the vertical position of the television image.
"H" level: Use the default setting that centers the PC image in the
television display.
Setting value is 45 for back porch and 530 for active end.
These settings cause one or two PC lines to be lost at both
the top and bottom.
"L" level: Use the default settings that align the center of the PC
image at two or three lines below the center of the
television display.
Setting value is 35 for back porch and 514 for active end.
These settings doesn’t lose the tops of the images but
cause three or four lines to be lost at the bottom.