UPD6461GS NEC [NEC], UPD6461GS Datasheet - Page 9

• Manufacturer Part Number: UPD6461GS
• Description: CMOS LSI CHIP FOR CAMCORDER ON-SCREEN CHARACTER DISPLAY 12 ROWS x 24 COLUMNS
• Manufacturer: NEC [NEC]

1.2 HOW TO SELECT MASK OPTIONS
character pattern data.
the same settings (different values) for lines (6) and (7). For example, when selecting LC oscillation, select “LC” for both
lines (1 for (6) and 0 for (7)). Don’t select external clock input for lines (6) and/or (7).
has been selected.
or 1 for each bit.
OC (COMMAND INPUT)
OPTION DATA (0---LSB FAST , 1---MSB FAST
OPTION DATA (0---V:9H
OPTION DATA (0---RGB+3BLK , 1---RGB+V
OPTION DATA (0---OUTPUT 20 , 1---OUTPUT 21
OPTION DATA (0---OUTPUT 10 , 1---OUTPUT 11
OPTION DATA (0---EXT CLK
OPTION DATA (0---LC
Option A
Option B
Option C
MSB first
Specification in three-line units
RGB+3BLK
Option A (only option A can be
specified in RGB+3BLK mode)
LC oscillation
D7
D7
To select mask options, use the option setting command (OC) of the Character Pattern Editor, a tool designed for editing
Activate the Character Pattern Editor, then display the following setting menu:
Actually, the above menu is displayed one line at a time. Once you have selected an option, the next line is displayed.
Select 0 or 1 for lines (1), (2), (3), (6), and (7), according to the setting to be made. For the dot clock, however, make
When selecting the output distribution format, select the values on lines (4) and (5) as follows:
The settings are valid only when RGB+V
The following table lists the correspondence between the command bits and the lines of the setting menu. Specify 0
Command OD displays the result of the selection, as a hexadecimal number.
Example: When the mask options are selected as follows:
The command bits are set as follows:
0
0
D6
(1)
D6
1
Mask option
1(OUTPUT 21)
0(OUTPUT 20)
1(OUTPUT 21)
D5
(2)
D5
1
(4)
D4
(3)
D4
0
Command OD displays 6AH.
D3
(4)
D3
1
0(OUTPUT 10)
0(OUTPUT 10)
1(OUTPUT 11)
, 1---V:3H
, 1---LC
, 1---EXT CLK
D2
(5)
D2
0
(5)
Bit
D6
D5
D4
D3
D2
D1
D0
D1
D1
(6)
C1
1
+V
C1
C2
+V
Command
D0
D0
(7)
0
mode has been selected. Select option A (1, 0) when RGB+3BLK mode
C2
1
1
0
1
0
1
0
) :
) :
) :
) :
) :
) :
) :
......... (1)
......... (2)
......... (3)
......... (4)
......... (5)
......... (6)
......... (7)
PD6461, 6462
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