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參數(shù)資料
| 型號： | SAA7188A |
| 廠商： | NXP Semiconductors N.V. |
| 英文描述： | Digital Video Encoder (DENC2-M)(數(shù)字視頻編碼器(DENC2-M)) |
| 中文描述： | 數(shù)字視頻編碼器（DENC2米）（數(shù)字視頻編碼器（DENC2米）） |
| 文件頁數(shù)： | 21/36頁 |
| 文件大小： | 252K |
| 代理商： | SAA7188A |
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1996 Jul 08
21
Philips Semiconductors
Preliminary specification
Digital Video Encoder (DENC2-M)
SAA7188A
Table 28
Logic levels and function of PHRES
Table 29
Subaddress 71 to 73
Table 30
Subaddress 77 to 79
Table 31
Subaddress 7A to 7D
S
UBADDRESSES
In subaddresses 5B, 5C, 5D, 5E and 62 all IRE values are rounded up.
DATA BYTE
FUNCTION
PHRES1
PHRES0
0
0
1
1
0
1
0
1
no reset
reset every two lines
reset every eight fields
reset every four fields
DATA BYTE
DESCRIPTION
BMRQ
beginning of MP request signal (RCM2)
values above 1715 (FISE = 1) or 1727 (FISE = 0) are not allowed
first active pixel at analog outputs (corresponding input pixel coinciding with RCM2) at
BMRQ = 0F9H (115H)
end of MP request signal (RCM2)
values above 1715 (FISE = 1) or 1727 (FISE = 0) are not allowed
last active pixel at analog outputs (corresponding input pixel coinciding with RCM2) at
EMRQ = 686H (690H)
EMRQ
DATA BYTE
DESCRIPTION
BRCV
beginning of output signal on RCV2 pin
values above 1715 (FISE = 1) or 1727 (FISE = 0) are not allowed
first active pixel at analog outputs (corresponding input pixel coinciding with RCV2) at
BRCV = 0F9H (115H)
end of output signal on RCV2 pin
values above 1715 (FISE = 1) or 1727 (FISE = 0) are not allowed
last active pixel at analog outputs (corresponding input pixel coinciding with RCV2) at
ERCV = 686H (690H)
ERCV
DATA BYTE
DESCRIPTION
FLEN
length of a field = FLEN + 1, measured in half lines
valid range is limited to 524 to 1022 (FISE = 1) respectively 624 to 1022 (FISE = 0),
FLEN should be even
first active line after vertical blanking interval = FAL + 1, measured in lines
FAL = 0 coincides with the first field synchronization pulse
last active line before vertical blanking interval = LAL + 1, measured in lines
LAL = 0 coincides with the first field synchronization pulse
FAL
LAL
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