參數(shù)資料
型號: 935261504551
廠商: NXP SEMICONDUCTORS
元件分類: 消費(fèi)家電
英文描述: SPECIALTY CONSUMER CIRCUIT, PQFP44
封裝: PLASTIC, SOT-307, QFP-44
文件頁數(shù): 27/87頁
文件大小: 440K
代理商: 935261504551
1999
Jul
01
33
Philips
Semiconductors
Product
specication
9-bit
video
input
processor
SAA71
13H
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Table 17 Sliced data format on the 8-bit VPO-bus (data types 0 to 5 and 8 to 14)
Table 18 Explanation to Table 17
Notes
1. Inverted EP (bit 7); for EP see note 2.
2. Even parity (bit 6) of bits 5 to 0.
3. Odd parity (bit 7) of bits 6 to 0.
BLANKING
PERIOD
TIMING
REFERENCE CODE
INTERNAL HEADER
SLICED DATA
TIMING
REFERENCE CODE
BLANKING
PERIOD
...
80
10
FF
00
SAV
SDID
DC
IDI1
IDI2
DLN1
DHN1
...
DLNn
DHNn
FF
00
EAV
80
10
...
NAME
EXPLANATION
SAV
start of active data; see Tables 5 to 7
SDID
sliced data identication: NEP(1), EP(2), SDID5 to SDID0, freely programmable via I2C-bus subaddress 5EH, D5 to D0, e. g. to be used as
source identier
DC
Dword count: NEP(1), EP(2), DC5 to DC0; DC is inserted for software compatibility reasons to SAA7112, but does not represent any relevant
information for SAA7113H applications.
DC describes the number of succeeding 32-bit words:
DC = 1
4(C + n), where C = 2 (the two data identication bytes IDI1 and IDI2) and n = number of decoded bytes according to the chosen text
standard. As the sliced data are transmitted nibble wise, the maximum number of bytes transmitted (NBT) starting at IDI1 results to:
NBS = (DC
× 8) 2
DC can vary between 1 and 11, depending on the selected data type.
Note that the number of bytes actually transmitted can be less than NBT for two reasons:
1. result of DC would result to a non-integer value (DC is always rounded up)
2. standard not recognized (wrong standard or poor input signal)
IDI1
internal data identication 1: OP(3), FID (eld 1 = 0, eld 2 = 1), LineNumber8 to LineNumber3
IDI2
internal data identication 2: OP(3), LineNumber2 to LineNumber0, DataType3 to DataType0; see Table 4
DLNn
sliced data LOW nibble, format: NEP(1), EP(2), D3 to D0, 1, 1
DLHn
sliced data HIGH nibble, format: NEP(1), EP(2), D7 to D4, 1, 1
EAV
end of active data; see Tables 5 to 7
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