SAA7146AH/V4,557 NXP Semiconductors, SAA7146AH/V4,557 Datasheet - Page 113
![IC VIDEO SPCI BRIDGE HP 160-QFP](/photos/6/89/68971/568-160-qfp_sot322-2_sml.jpg)
SAA7146AH/V4,557
Manufacturer Part Number
SAA7146AH/V4,557
Description
IC VIDEO SPCI BRIDGE HP 160-QFP
Manufacturer
NXP Semiconductors
Type
Video Bridger
Datasheet
1.SAA7146AHV4557.pdf
(139 pages)
Specifications of SAA7146AH/V4,557
Package / Case
160-QFP
Applications
DTV
Mounting Type
Surface Mount
Maximum Operating Temperature
+ 70 C
Minimum Operating Temperature
0 C
Mounting Style
SMD/SMT
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
Lead Free Status / RoHS Status
Lead free / RoHS Compliant, Lead free / RoHS Compliant
Other names
568-1318
935269343557
SAA7146AHBB
935269343557
SAA7146AHBB
Available stocks
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Part Number
Manufacturer
Quantity
Price
Company:
Part Number:
SAA7146AH/V4,557
Manufacturer:
NXP Semiconductors
Quantity:
10 000
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Philips Semiconductors
7.16.5.1
There are 3 audio mode bits to select which TSL is active and how to synchronize and combine them. The first half of
Table 105 supports asynchronous operation of A1 and A2, each following their own configuration bits and working
independent of each other. In the second half of the table, the two interfaces work synchronously, according to the clock
configuration setting of A1_CLKSRC. Some special cases are discussed below.
AUDIO_MODE [2:0] = 7: the two TSLs are chained to each other thus enabling a longer TSL, with up to 32 time slots to
be built (SINGER format). There is only one common TSL pointer active which is able to reach the whole address range.
The pointer synchronisation is done according to the A1 configuration. There is only one EOS bit needed.
AUDIO_MODE [2:0] = 5
Synchronous change from one TSL to the other TSL when reaching the protection address. By that the TSL can be
changed, by switching to the other TSL, without disturbing real time flow of audio streams. There is no time gap
necessary for reprogramming a TSL. Reprogramming is performed by using the other TSL as shadow. The two TSL
pointers are locked, i.e. each one pointing to its own list area, but resetting and incrementing synchronously.
Table 105Audio_mode control
2004 Aug 25
000
001
010
011
100
101
110
111
AUDIO_MODE
Multimedia bridge, high performance
Scaler and PCI circuit (SPCI)
[2:0]
Audio mode control
off
processing TSL1; synchronisation according to
A1 configuration
off
processing TSL1; synchronisation according
to A1 configuration
processing TSL1; synchronisation according
to A1 configuration
processing TSL1; synchronisation according
to A1 configuration
processing TSL2 in common with A2;
TSL1 pointer = TSL2 pointer
processing TSL1 and TSL2 in common with A2,
synchronization according to A1 configuration;
TSL1 pointer range is up to 32 records
6: both interfaces working synchronously on the same TSL half and with the same record.
AUDIO INTERFACE A1
113
off
off
processing TSL2; synchronisation according
to A2 configuration
processing TSL2; synchronisation according
to A2 configuration
processing TSL2; TSL2 pointer is in sync
(locked) to TSL1 pointer;
TSL2 pointer = TSL1 pointer + 16
processing TSL1 in common with A1;
TSL2 pointer = TSL1 pointer
processing TSL2; synchronisation according
to A1 configuration
processing TSL1 and TSL2 in common with A1;
TSL2 pointer = TSL1 pointer
AUDIO INTERFACE A2
Product specification
SAA7146A
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