UPD6462 NEC, UPD6462 Datasheet - Page 3

• Manufacturer Part Number: UPD6462
• Description: CMOS LSI CHIP FOR CAMCORDER ON-SCREEN CHARACTER DISPLAY 12 ROWS x 24 COLUMNS
• Manufacturer: NEC

CK
DATA
OSC
Hsync
Vsync
OSC
CLK
CS
OUT
OUT
Remark Signals in (
IN
Oscil-
lator
Synchro-
nization
protection
circuit
) are set by a mask option (RGB + RGB compatible blanking).
Data input shift
register
Horizontal size
counter
Character size
register
Vertical size
counter
Horizontal address
register for
display position
Vertical address
register for
display position
Horizontal
position counter
Vertical position
counter
Horizontal address
counter
Instruction decoder
Write address
counter
Vertical address
counter
Character
generator ROM
12
( PD6461)
/
( PD6462)
Control signals
Char-
acter
data
8 bits
words
256 words
288
128 words
18 bits
Color
data
3 bits
words
288
Video RAM
V
Blink
data
1 bit
words
R
288
V
G
Re-
verse
data
1 bit
words
V
288
(B
Output controller
B
BLK
V
)
BLK
Out-
put
speci-
fication
data
1 bit
words
288
V
C1
BLK1 V
Back-
ground
control
data
register
(B
BLK
(R
C2
BLK
)
BLK2
)
Display
control
data
register
TEST
V
GND
PCL
DD