pnx8510 NXP Semiconductors, pnx8510 Datasheet - Page 53

• Manufacturer Part Number: pnx8510
• Description: Analog Companion Chip
• Manufacturer: NXP Semiconductors

Philips Semiconductors
Table 29:
* indicates not present in secondary video channel
9397 750 12612
Product data
Bit
6
5
4
3
2
1
0
Offset 0x7D - Must be initialized to zero.
Offset 0x7E - DTTXL
7:0
Offset 0x7F - DTTXL2
7:0
Offset 0x80 - LCNT_ARRAY_LINE*
7:0
Offset 0x81 - LCNT_ARRAY_LINE*
7:6
5:0
Offset 0x82 - LCNT_ARRAY_ADR*
7:4
3:0
Offset 0x83–0x85 - LTYPE_ARRAY_LINE*
7:0
Offset 0x86 - LTYPE_ARRAY_ADR*
7:4
Symbol
LAL8
TTXO
FAL8
TTXEVE8
TTXOVE8
TTXEVS8
TTXOVS8
DTTXL
DTTXL
LCNT_ARRAY_LINE
Unused
LCNT_ARRAY_LINE
Unused
LCNT_ARRAY_ADR
LTYPE_ARRAY_LINE
0x83 -> LSBs
0x85 -> MSBs
Unused
PNX8510/11 video registers
Access Value
R/W
R/W
R/W
R/W
R/W
R/W
R/W
R/W
R/W
R/W
R/W
R/W
R/W
…continued
1
0
0
0
0
0
0
0x00
0x00
-
-
-
-
-
-
-
Rev. 04 – 12 January 2004
Description
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
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.
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.
Line count array programming data lower 8 bits
Line count array programming data upper 6 bit
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.
Line type array programming data
2:0 = first index
...
23:21 = last index
© Koninklijke Philips Electronics N.V. 2004. All rights reserved.
PNX8510/11
Analog companion chip
53 of 92