參數(shù)資料
型號(hào): 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(yè)數(shù): 30/92頁(yè)
文件大?。?/td> 3064K
代理商: PNX8511
Philips Semiconductors
PNX8510/11
Analog companion chip
Product data
Rev. 04 – 12 January 2004
30 of 92
9397 750 12612
Koninklijke Philips Electronics N.V. 2004. All rights reserved.
//p8p7p6p5p4p3p2p1
-------------------------------------
00000034 //sync-full line active
00000024 //sync-full line blank (vsync)
00000054 //sync-full line black (v-blanking)
00000000
00000000
00000000
00000000
00000000
00000000
00000000
00000000
00000000
00000000
00000000
#line_pattern_array
//dur4sel4val4dur3sel3val3dur2sel2val2dur1sel1val 1
-------------------------------------------------------
000000000000 //empty
00069137141071410 //full line blank
6913639006390014913 //full line active
000691339123911 //sync pulse
6913639136391314913 //full line black
000000000000
000000000000
#value_array Y
//signed values
YUV
------------------------
-51200//broad pulse level
-512-432-432//lower sync tip
102432432//black/blank level org
000
000
000
000
7.2.3
Signature analysis
PNX8510/11 allows the signature analysis to be done on both primary and the
secondary video channels and read the two signatures separately. The signature
analysis is done on the upper 8 bits of the interface. The video channel select for the
signature analysis is defined by the “SIG_SELECT” of the SIGCTRL (offset 0xBA)
register.
The signature is calculated as per the following CRC algorithm:
// * This is a simple table based CRC-16 that computes the CRC
// * four bits at a time. This requires a small (16 entry) lookup table.
// * lookup table for non-reversed parallel CRC algorithms
// unsigned int crc16_table[16]={
// 0x0000, 0x8005, 0x800f, 0x000a,
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