PCA8515P Philips Semiconductors, PCA8515P Datasheet - Page 35

• Manufacturer Part Number: PCA8515P
• Description: Stand-alone OSD
• Manufacturer: Philips Semiconductors

Philips Semiconductors
9.11
Table 33 Command A format
Command A loads Control Register 4 with data that
determines the function of pin 2 (P04/ACM(VOB2).
Table 34 Selection of P04 or ACM
9.12
Table 35 Command B format
Table 36 Command C format
Table 37 Command D format
These three commands determine the vertical and
horizontal start positions of the display. 64 vertical and
64 horizontal start positions can be selected. After a
master reset, starting positions are not guaranteed and
therefore must be programmed by the user. The horizontal
start position (HP) and the vertical start position (VP) may
be calculated as follows:
Where (H5
(H5
Where (V5
(V5
1995 Jan 19
HP
VP
BS1
BS1
BS1
BS1
A/P
Stand-alone OSD
0
0
0
0
0
1
=
=
V0)
Command A
Commands B, C and D
H0)
4
4
BS0
BS0
BS0
BS0
P04 is selected as an output port. Data is
written to this port using Command E. This is
also the default setting.
ACM function selected; can also be used as the
5th colour signal.
1
1
1
1
0.
V5
H5
4.
H0) is the decimal value of these 6 bits and
V0) is the decimal value of these 6 bits and
7
0
7
1
7
1
7
1
V0
H0
6
1
6
0
6
0
6
0
+
PIN FUNCTION
5
number of scan lines
5
1
5
0
5
1
5
1
f
OSD
4
1
4
1
4
0
4
1
H3
V5
V1
3
0
3
3
3
A/P
V4
V0
H2
2
2
2
2
V3
H5
H1
1
0
1
1
1
V2
H4
H0
0
0
0
0
0
35
9.13
When output ports P00, P01 and P04 are enabled,
Command E is used to write data to them.
Table 38 Command E format
9.14
Table 39 Command F format
This command loads Control Register 5 with data that
determines the background colour in Frame shadowing
mode.
BS1 BS0
BS1
0
0
Command E
Command F
BS0
1
0
7
1
7
0
6
1
6
1
X
5
5
0
P04
4
4
0
Preliminary specification
X
3
R
3
PCA8515
X
2
G
2
P01
1
B
1
P00
0
0
I