PCA8514T PHILIPS [NXP Semiconductors], PCA8514T Datasheet - Page 19

• Manufacturer Part Number: PCA8514T
• Description: Stand-alone OSD
• Manufacturer: PHILIPS [NXP Semiconductors]

Philips Semiconductors
9.4
Table 18 Command 3 format
Command 3 loads the DCR Address Register with the
4 MSBs of the RAM address to which data will be written.
9.5
Table 19 Command 4 format
Command 4 loads the DCR Address Register with the
4 LSBs of the RAM address to which data will be written.
9.6
Table 20 Command 5 format
Command 5 is used to load character data into the DCR
Character Register. The data will specify either a
Character Font Code, the Test Code, the Carriage Return
Code or the Space Code. These codes are explained in
detail in Section 8.1.
9.7
Table 21 Command 6 format
Command 6 loads the programmable 6-bit counter of the
OSD clock oscillator. The output frequency (f
function of the decimal value of the 6-bits loaded in by
Command 6; see Chapter 11.
1995 Nov 27
BS1 BS0
BS1 BS0
BS1 BS0
BS1 BS0
0
0
1
0
Stand-alone OSD
Command 3
Command 4
Command 5
Command 6
0
0
0
1
7
0
7
0
7
1
7
0
C6
6
0
6
0
6
6
0
C5
D5
5
1
5
1
5
5
C4
D4
4
1
4
1
4
4
C3
D3
A7
A3
3
3
3
3
C2
D2
A6
A2
2
2
2
2
OSD
C1
D1
A5
A1
1
1
1
1
) is a
A4
A0
C0
D0
0
0
0
0
19
9.8
Table 22 Command 7 format
This command loads Control Register 1 with data that
selects the scanning mode, the output polarity of signals
FB, ACM, R, G, B and I, and also enables/disables the
OSD clock.
With reference to the scanning modes: 1V/2V is the
conventional NTSC or PAL scanning mode; 1V/2H is the
Line Progress Scan used for the IDTV in NTSC and 2V/2H
is for the PAL system and is known as 50 to 100 Hz scan
conversion.
Table 23 Selection of Scanning Mode
Table 24 Selection of output polarity (see Fig.13)
Table 25 OSD clock control
BS1 BS0
M1
0
0
0
1
1
EN
Bp
0
1
0
1
Command 7
M0
1
0
1
0
1
1V/1H; NTSC 525LPF/60 Hz or
PAL 625LPF/50 Hz; see Fig.11. This is the
default setting.
reserved
1V/2H; NTSC 1050LPF/60 Hz; see Fig.11.
2V/2H; PAL 1250LPF/100 Hz; see Fig.12.
OUTPUT POLARITY (FB, ACM, R, G, B, I)
active LOW
active HIGH (the default setting)
disabled (the default setting)
enabled
7
0
6
1
5
0
SCAN MODE
OSD CLOCK
4
0
M1
Product specification
3
PCA8514
M0
2
Bp
1
EN
0