saa7893hl-02 NXP Semiconductors, saa7893hl-02 Datasheet - Page 2
saa7893hl-02
Manufacturer Part Number
saa7893hl-02
Description
Saa7893hl Super Audio Media Player
Manufacturer
NXP Semiconductors
Datasheet
1.SAA7893HL-02.pdf
(66 pages)
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Philips Semiconductors
9397 750 10925
Product data
Fig 2. Hardware block diagram.
1.1 Hardware
1.2 Software
The SA-MP hardware consists of the SAA7893HL device. A typical HW block
diagram of a DVD system incorporating the SAA7893HL is shown in
The SAA7893HL takes sector data from the front-end. The front-end is controlled by
the DVD host via the SA-MP software stack. The SAA7893HL uses one 64 Mbit
SDRAM for audio data buffering and storage of SACD TOCs. The front-end timing
can be fully asynchronous from all clocks.
The 6-channel DAC outputs of the DVD host are routed via the SAA7893HL which
provides a DAC switch function between SACD mode and DVD mode. The audio
outputs of the SAA7893HL operate on the system audio clock.
The DVD back-end communicates with the SAA7893HL via a host bus. The system
clock and the system audio clock are allowed to be asynchronous.
The SA-MP software is delivered in the form of a library in the development
environment of the DVD host. The SA-MP software has been developed in ANSI-C
using conventional software technology to allow easy integration into any
development environment. A typical software block diagram of a DVD system
incorporating SA-MP is shown in
At the device driver and HW-level, SA-MP interfaces with the SAA7893HL and a
front-end driver. At the infrastructure level, SA-MP interfaces with an Operating
System Abstraction layer (OSA). At the application level, SA-MP provides a high-level
playback and post-processing interface which is easy to integrate into typical
applications.
FRONT-
END
data
control
EFM
Rev. 02 — 26 February 2003
host
bus
NVRAM
DVD BACK-END
SAA7893HL
ROM
SDRAM
SDRAM
Figure
audio
audio
clock
MGU726
3.
PLL
video
27 MHz
audio
© Koninklijke Philips Electronics N.V. 2003. All rights reserved.
Super audio media player
SAA7893HL
Figure
2.
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