SAA7144 NXP Semiconductors, SAA7144 Datasheet - Page 31

• Manufacturer Part Number: SAA7144
• Manufacturer: NXP Semiconductors

Specifications of SAA7144

• Package Type: LQFP
• Lead Free Status / RoHS Status: Compliant

Philips Semiconductors
Table 16:
Table 17:
Table 18:
Table 19:
Table 20:
Table 21:
9397 750 14454
Product data sheet
Blanking
period
... 80 10 FF 00 00 SAV C
Name
SAV
C
Yn
C
EAV
Blanking
period
... 80 10 FF 00 00 SAV Y0
Name
SAV
Yi
EAV
Blanking
period
... 80 10 FF 00 00 SAV SDID DC IDI1 IDI2 DLN1 DHN1 ... DLNn DHNn FF 00 00 EAV 80 10 ...
Name
SAV
SDID
DC
IDI1
B
R
n
n
Y-C
Explanation to
Raw data format on the 8-bit VPO-bus (data type 8)
Explanation to
Sliced data format on the 8-bit VPO-bus (data types 0 to 5 and 8 to 14)
Explanation to
Timing
reference code
Timing reference
code
Explanation
start of active video range; see
U (B
Y (luminance) component, pixel number n = 0, 1, 2, 3 to 719
V (R
end of active video range; see
Timing reference
code
Explanation
start of raw sample range; see
oversampled raw sample stream (CVBS signal), n = 0, 1, 2, 3 to n; n is programmable via HSB and HSS;
see
end of raw sample range; see
Explanation
start of active data; see
sliced data identification: NEP
5Eh[5:0], e.g. to be used as source identifier
Dword count: NEP
but does not represent any relevant information for SAA7144HL applications.
DC describes the number of succeeding 32-bit words:
DC =
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
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)
internal data identification 1: OP
B
-C
Section 9.3.6
R
1
Y) color difference component, pixel number n = 0, 2, 4 to 718
Y) color difference component, pixel number n = 0, 2, 4 to 718
4
data format on the 8-bit VPO-bus (data types 6 and 15)
(C + n), where C = 2 (the two data identification bytes IDI1 and IDI2) and n = number of decoded
Table 16
Table 18
Table 20
and
Internal header
[1]
, EP
720 pixels Y-C
Oversampled CVBS samples
Section 9.3.7
B
0
Table 8
[2]
, DC5 to DC0; DC is inserted for software compatibility with old encoder devices,
Y0 C
Y1 Y2
[1]
Table 8
Table 8
Table 8
Table 8
to
, EP
[3]
R
, FID (field 1 = 0, field 2 = 1), LineNumber8 to LineNumber3
Table 10
0 Y1 C
B
[2]
Rev. 01 — 21 April 2005
-C
to
to
, SDID5 to SDID0, freely programmable via I
Y3 Y4
to
to
R
Table 10
Table 10
Table 10
4 : 2 : 2 data
Table 10
Sliced data
B
2
Y2 ... C
Y5 ... Yn
R
718
1
Y719
Yn
Quadruple video input processor
8)
© Koninklijke Philips Electronics N.V. 2005. All rights reserved.
Timing reference
code
FF 00 00 EAV 80 10 ...
Timing reference
code
FF 00 00 EAV 80 10 ...
Timing
reference code
2
SAA7144HL
2
C-bus subaddress
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period
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period
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period
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