參數(shù)資料
型號(hào)： PCA8514P
廠商： NXP Semiconductors N.V.
英文描述： Stand-alone OSD
中文描述： 單機(jī)OSD
文件頁數(shù)： 19/64頁
文件大?。?/td> 322K
代理商： PCA8514P
1995 Nov 27
19
Philips Semiconductors
Product specification
Stand-alone OSD
PCA8514
9.4
Command 3
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
Command 4
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
Command 5
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
Command 6
Table 21
Command 6 format
Command 6 loads the programmable 6-bit counter of the
OSD clock oscillator. The output frequency (f
OSD
) is a
function of the decimal value of the 6-bits loaded in by
Command 6; see Chapter 11.
BS1 BS0
7
6
5
4
3
2
1
0
0
0
0
0
1
1
A7
A6
A5
A4
BS1 BS0
7
6
5
4
3
2
1
0
0
0
0
0
1
1
A3
A2
A1
A0
BS1 BS0
7
6
5
4
3
2
1
0
1
0
1
C6
C5
C4
C3
C2
C1
C0
BS1 BS0
7
6
5
4
3
2
1
0
0
1
0
0
D5
D4
D3
D2
D1
D0
9.8
Command 7
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
7
6
5
4
3
2
1
0
0
1
0
1
0
0
M1
M0
Bp
EN
M1
M0
SCAN MODE
0
0
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.
0
1
1
1
0
1
Bp
OUTPUT POLARITY (FB, ACM, R, G, B, I)
0
1
active LOW
active HIGH (the default setting)
EN
OSD CLOCK
0
1
disabled (the default setting)
enabled
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