upd6461 Renesas Electronics Corporation., upd6461 Datasheet - Page 8

• Manufacturer Part Number: upd6461
• Description: Cmos Lsi Chip For Camcorder On-screen Character Display 12 Rows X 24 Columns
• Manufacturer: Renesas Electronics Corporation.

8
1. MASK CODE OPTIONS
1.1 MASK CODE OPTIONS
(1)
(2)
(3)
(4)
(5)
The µ PD6461, µ PD6462 provide mask options for selecting the following items:
is selected. (When RGB+3BLK mode is selected, select option A as the output distribution format. Options B and C
are invalid.)
the vertical display start position can be set more finely than in nine-line units.
V
R
character signal for each color, select RGB+3BLK mode.
video tape (such as a date and title). Other information, however, need only be displayed in the viewfinder (battery
or focus alarm and tape count). The µ PD6461, 6462 can distribute such information to different output channels in
units of rows or half rows. You can select option A, option B, and option C as the output distribution format (only when
RGB+V
CLOCK INPUT in 6. ELECTRICAL CHARACTERISTICS.
Data transfer
Vertical display start position
Pin selection
Output distribution format
Dot clock
(1)
(2)
(3)
(4)
(5)
G
BLK
Select the format to be used to distribute character signals to the V
, V
Select the command transfer format.
Select the units used for specifying the vertical display start position of the character display area. In three-line units,
Select the pins used to output character signals. In RGB+V
When displaying colored characters in a color viewfinder, select RGB+V
When an on-screen IC is used in a camcorder, some information is displayed in the viewfinder and recorded onto
Select the dot clock to be used to display characters. When an external clock input is selected, refer to EXTERNAL
, G
B
Data transfer
Vertical display start position
Pin selection
Output distribution format
Dot clock
, V
BLK
C1
BLK
+V
, B
, V
C2
BLK
C1
mode is selected).
, V
, BLK1, V
Item
C1
, and BLK1 pins.
C2
, and BLK2 pins. In RGB+3BLK mode, character signals are output from the V
LSB first
Specified in three-line units
RGB+V
Option A
LC oscillation
Data Sheet S13320EJ2V0DS
C1
+V
C2
Option B
Selections
C1
+V
C2
MSB first
Specified in nine-line units
RGB+3BLK
External clock input
C1
mode, character signals are output from the V
and V
C1
+V
Option C
C2
C2
channels when RGB+V
mode. When assigning a separate
µ PD6461, 6462
C1
+V
R
, V
C2
G
mode
, V
R
B
,
,