PCA84C646P PHILIPS [NXP Semiconductors], PCA84C646P Datasheet - Page 24
PCA84C646P
Manufacturer Part Number
PCA84C646P
Description
Microcontrollers for TV tuning control and OSD applications
Manufacturer
PHILIPS [NXP Semiconductors]
Datasheet
1.PCA84C646P.pdf
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Philips Semiconductors
12 OSD CONTROL REGISTERS
The functions of the OSD circuitry are controlled by the Derivative Registers as shown in Table 21.
Table 21 OSD Control Registers overview
1995 Jun 15
NAME
CON1
CON2
CON3
CON4
VPOS
HPOS
BCC
Microcontrollers for TV tuning
control and OSD applications
DERIVATIVE REGISTER
NUMBER
22
23
33
34
35
36
37
ADDR
22H
23H
33H
34H
35H
36H
37H
Enable TDAC; the I
lines.
Selects the output polarity of the PWM outputs and also enables and selects the
VSYNC interrupt.
Selects the blinking frequency and the active ratio of the blinking frequency for the
OSD.
Selects the 4 display modes; the active state of HSYNC and VSYNC and the
output polarity of the FB and VOW0 to VOW2 outputs. It also enables/disables the
OSD clock.
Selects the vertical starting position of the display row.
Selects the horizontal starting position of the display row.
Selects the background colour.
2
C-bus lines; the AFC functions and the VOW0 and VOW1
24
FUNCTION
PCA84C646; PCA84C846
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