saa7114 NXP Semiconductors, saa7114 Datasheet - Page 120

• Manufacturer Part Number: saa7114
• Description: Pal/ntsc/secam Video Decoder With Adaptive Pal/ntsc Combfilter, Vbi-data Slicer And High Performance Scaler
• Manufacturer: NXP Semiconductors

Philips Semiconductors
Table 128: Decoder part start setup values for the three main standards
[1]
Table 129: Audio clock part setup values
SAA7114_3
Product data sheet
Subaddress
(hexadecimal)
14
15
16
17
18
19
1A to 1E
1F
Subaddress
(hexadecimal)
30
31
32
33
34
35
36
All X values must be set to logic 0.
11.2 Audio clock generation part
Register function
analog/ADC/compatibility
control
VGATE start, FID change
VGATE stop
miscellaneous, VGATE
configuration and MSBs
raw data gain control
raw data offset control
reserved
status byte video decoder
(OLDSB = 0)
Register function
audio master clock cycles per
field; bits D7 to D0
audio master clock cycles per
field; bits D15 to D8
audio master clock cycles per
field; bits D17 and D16
reserved
audio master clock nominal
increment; bits D7 to D0
audio master clock nominal
increment; bits D15 to D8
audio master clock nominal
increment; bits D21 to D16
The given values force the following behavior of the SAA7114 audio clock generation part:
•
•
•
•
•
•
Used crystal is 24.576 MHz
Expected field frequency is 59.94 Hz (e.g. NTSC M standard)
Generated audio master clock frequency at pin AMCLK is
256
AMCLK is externally connected to AMXCLK [short-cut between
pins K12 (37) and J12 (41)]
ASCLK = 32
ALRCLK is 44.1 kHz
44.1 kHz = 11.2896 MHz
44.1 kHz = 1.4112 MHz
Bit name
CM99, UPTCV, AOSL1, AOSL0,
XTOUTE, OLDSB,
APCK1 and APCK0
VSTA7 to VSTA0
VSTO7 to VSTO0
LLCE, LLC2E, X, X, X, VGPS,
VSTO8 and VSTA8
RAWG7 to RAWG0
RAWO7 to RAWO0
X, X, X, X, X, X, X, X
INTL, HLVLN, FIDT, GLIMT, GLIMB,
WIPA, COPRO and RDCAP
Bit name
ACPF7 to ACPF0
ACPF15 to ACPF8
X, X, X, X, X, X, ACPF17
and ACPF16
X, X, X, X, X, X, X, X
ACNI7 to ACNI0
ACNI15 to ACNI8
X, X, ACNI21 to ACNI16
Rev. 03 — 17 January 2006
[1]
[1]
…continued
Values (binary)
7 6 5 4 3 2 1 0
1 0 1 1 1 1 0 0 BC
1 1 0 1 1 1 1 1 DF
0 0 0 0 0 0 1 0 02
0 0 0 0 0 0 0 0 00
1 1 0 0 1 1 0 1 CD
1 1 0 0 1 1 0 0 CC
0 0 1 1 1 0 1 0 3A
PAL/NTSC/SECAM video decoder
Values (hexadecimal)
NTSC M
00
11
FE
40
40
80
00
read only
© Koninklijke Philips Electronics N.V. 2006. All rights reserved.
PAL B, D,
G, H and I
00
11
FE
40
40
80
00
SAA7114
Start
(hexadecimal)
SECAM
00
11
FE
40
40
80
00
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