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): 52/92頁
文件大小: 3064K
代理商: PNX8511
Philips Semiconductors
PNX8510/11
Analog companion chip
Product data
Rev. 04 – 12 January 2004
52 of 92
9397 750 12612
Koninklijke Philips Electronics N.V. 2004. All rights reserved.
Offset 0x74 - TTXHL/TTXHD
7:4
TTXHL
R/W
0x5
Length of TTXRQ window; only active at old TTX protocol
Note: bit TTXO = 1
Indicates the delay in clock cycles between rising edge of TTXRQ
output and valid data at pin TTX.
3:0
TTXHD
R/W
0x2
Offset 0x75 - CSYNCA
7:3
CSYNCA
R/W
0x0
Advances composite sync against RGB output, adjustable from 0
XTAL clocks to 31 XTAL clocks
2:0
Offset 0x76 - TTXOVS
7:0
TTXOVS
Unused
-
R/W
0x5
First line of occurrence of Teletext data in odd field
line = (TTXOVS + 4) for M-systems
line = (TTXOVE +1) for other systems
PAL: TTXOVS = 0x05
NTSC: TTXOVS = 0x06
Offset 0x77 - TTXOVE
7:0
TTXOVE
R/W
0x16
Last line of occurrence of Teletext data in odd field
line = (TTXOVS + 3) for M-systems
line = TTXOVE for other systems
PAL: TTXOVS = 0x16
NTSC: TTXOVS = 0x10
Offset 0x78 - TTXEVS
7:0
TTXEVS
R/W
0x4
First line of occurrence of Teletext data in even field
line = (TTXOVS + 4) for M-systems
line = (TTXOVE + 1) for other systems
PAL: TTXOVS = 0x04
NTSC: TTXOVS = 0x05
Offset 0x79 - TTXEVE
7:0
TTXEVE
R/W
0x16
Last line of occurrence of Teletext data in even field
line = (TTXOVS + 3) for M-systems
line = TTXOVE for other systems
PAL: TTXOVS = 0x16
NTSC: TTXOVS = 0x10
Offset 0x7A - FAL (Vertical Active Size Adjustment)
7:0
FAL
R/W
0x24
Defines the video vertical position w.r.t vsync.
First active line = FAL+4 for M-systems and = FAL+1 for other
systems. Measured in lines, FAL = 0 coincides with the first field
sync pulse.
Offset 0x7B - LAL (Vertical Active Size Adjustment)
7:0
LAL
R/W
0x29
Last active line = LAL+3 for M-systems and = FAL for other
systems. Measured in lines, LAL = 0 coincides with the first field
sync pulse.
Offset 0x7C - TTXCTRL
7
TTX60
R/W
0
0 = Enables NABTS (FISE=1) or European TTX (FISE=0).
1 = Enables World Standard Teletext 60Hz (FISE=1).
Table 29:
* indicates not present in secondary video channel
Bit
Symbol
PNX8510/11 video registers
…continued
Access Value
Description
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