Apparatus and method for firmware download in a mobile audio platform
First Claim
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1. A mobile communications device, comprising:
- a host processor;
a system memory for storing at least one program;
a host interface coupled to the host processor;
a mobile audio platform unit coupled to the host processor for processing a first signal and transferring the processed first signal to the host processor via the host interface;
a program memory coupled to the mobile audio platform unit;
a switch coupled between the mobile audio platform unit and the program memory; and
an application program interface executable by the host processor for performing download of the program from the system memory to the program memory.
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Abstract
A cellular phone includes a host processor, a system memory for storing at least one program, a mobile audio platform unit coupled to the host processor for processing a first signal and transferring the processed first signal to the host processor, a program memory coupled to the mobile audio platform unit, and a control logic circuit for controlling a download operation of the program from the system memory to the program memory.
8 Citations
24 Claims
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1. A mobile communications device, comprising:
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a host processor;
a system memory for storing at least one program;
a host interface coupled to the host processor;
a mobile audio platform unit coupled to the host processor for processing a first signal and transferring the processed first signal to the host processor via the host interface;
a program memory coupled to the mobile audio platform unit;
a switch coupled between the mobile audio platform unit and the program memory; and
an application program interface executable by the host processor for performing download of the program from the system memory to the program memory. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8)
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9. A cellular phone, comprising:
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a host processor;
a system memory for storing at least one program;
a mobile audio platform unit coupled to the host processor for processing a first signal and transferring the processed first signal to the host processor;
a program memory coupled to the mobile audio platform unit; and
a control logic circuit for controlling a download operation of the program from the system memory to the program memory. - View Dependent Claims (10, 11, 12, 13, 14)
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15. A method of downloading a program stored in a system memory for an mobile audio platform unit in a cellular phone, comprising:
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accessing the program stored the system memory;
providing a control logic circuit;
the control logic circuit providing a first control signal to open a switch disposed between the mobile audio platform unit and a program memory;
downloading the program from the system memory;
storing the program in the program memory; and
providing a second control signal by the control logic circuit to close the switch, wherein the mobile audio platform unit is able to access and execute the program stored in the program memory. - View Dependent Claims (16, 17, 18, 19)
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20. A method of downloading a program stored in a system memory for a mobile communications device having a host processor, a program memory, an mobile audio platform unit, and a control logic circuit, comprising:
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accessing the program stored the system memory;
providing a first control signal to initiate program download;
downloading the program from the system memory;
storing the program in the program memory; and
accessing the program memory by the mobile audio platform unit to execute the program stored in the program memory. - View Dependent Claims (21, 22, 23, 24)
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Specification