參數(shù)資料
型號: PNX8511
廠商: NXP Semiconductors N.V.
英文描述: Analog companion chip
中文描述: 模擬伴隨芯片
文件頁數(shù): 53/92頁
文件大?。?/td> 3064K
代理商: PNX8511
Philips Semiconductors
PNX8510/11
Analog companion chip
Product data
Rev. 04 – 12 January 2004
53 of 92
9397 750 12612
Koninklijke Philips Electronics N.V. 2004. All rights reserved.
6
5
LAL8
TTXO
R/W
R/W
1
0
Bit 8 of LAL
0 =New TTX protocol selected. At each rising edge of TTXRQ a
single TTX bit is requested.
1 = Old TTX protocol selected. The encoder provides a window of
TTXRQ. The length of the window depends on the chosen TTX
standard.
Bit 8 of FAL
Bit 8 of TTXEVE
Bit 8 of TTXOVE
Bit 8 of TTXEVS
Bit 8 of TTXOVS
4
3
2
1
0
Offset 0x7D - Must be initialized to zero.
Offset 0x7E - DTTXL
7:0
DTTXL
FAL8
TTXEVE8
TTXOVE8
TTXEVS8
TTXOVS8
R/W
R/W
R/W
R/W
R/W
0
0
0
0
0
R/W
0x00
Individual lines in both fields (PAL counting) can be disabled for
insertion of teletext by the respective bits.
Disabled line =LINExx(50Hz field rate).
Bit 7 = Line 12; Bit 0 = Line 5
The mask is only effective if the lines are enabled via
TTXOVS/TTXOVE and TTXEVS/TTXEVE.
Offset 0x7F - DTTXL2
7:0
DTTXL
R/W
0x00
Individual lines in both fields (PAL counting) can be disabled for
insertion of teletext by the respective bits.
Disabled line = LINExx(50Hz field rate)
Bit 7 = Line 20; Bit 0 = Line 13
The mask is only effective if the lines are enabled via
TTXOVS/TTXOVE and TTXEVS/TTXEVE.
Offset 0x80 - LCNT_ARRAY_LINE*
7:0
LCNT_ARRAY_LINE
Offset 0x81 - LCNT_ARRAY_LINE*
7:6
Unused
5:0
LCNT_ARRAY_LINE
Offset 0x82 - LCNT_ARRAY_ADR*
7:4
Unused
3:0
LCNT_ARRAY_ADR
R/W
-
Line count array programming data lower 8 bits
-
-
R/W
Line count array programming data upper 6 bit
-
-
R/W
Line count array programming address
Writing to this address initiates the transfer of the data previously
written into locations 80 and 81 into an internal register array.
Offset 0x83– 0x85 - LTYPE_ARRAY_LINE*
7:0
LTYPE_ARRAY_LINE
0x83 -> LSBs
0x85 -> MSBs
R/W
-
Line type array programming data
2:0 = first index
...
23:21 = last index
Offset 0x86 - LTYPE_ARRAY_ADR*
7:4
Unused
-
Table 29:
* indicates not present in secondary video channel
Bit
Symbol
PNX8510/11 video registers
…continued
Access Value
Description
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