PSB7238 SIEMENS [Siemens Semiconductor Group], PSB7238 Datasheet - Page 128
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PSB7238
Manufacturer Part Number
PSB7238
Description
Joint Audio Decoder-Encoder - Multimode
Manufacturer
SIEMENS [Siemens Semiconductor Group]
Datasheet
1.PSB7238.pdf
(190 pages)
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Semiconductor Group
6
The JADE internal firmware starts automatically after a hardware reset.
Note: After a hardware reset, the JADE firmware needs to initialize its internal memories
In the initialization phase, the JADE will re-program some of the internal registers (see
Section 5.3 and Section 5.4). The default interface configuration is described in
Section 6.2.3.3.
After the initialization phase is completed, the JADE can be started in the default mode
or be reprogrammed and then started.
6.1
6.1.1
To obtain the version number of the on-chip firmware, the following interrupt handshake
procedure has to be implemented by a host:
Figure 39
and interfaces. The time to do this is less than 10 ms. The user must take care to
access the JADE only after this initialization phase is completed, i.e. 10 ms after
the hardware reset.
Firmware Features
Basic Functions
Firmware Version Number
128
Data Sheet 1998-07-01
Firmware Features
PSB 7238
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