Service Manual
6.2 Main Board
6.2.1 Overview
Baseband board consists of main chip (TX OMAP and RX OMAP), audio processing chip (CODEC) and
peripheral equipment. See the following figure:
Figure 6-5 Baseband Block Diagram
As a highly integrated hardware platform, OMAP5912 incorporates 2 processors: ARM+DSP. The
function of RX OMAP and TX OMAP is described below:
RX OMAP5912
(1) ARM: Reserved.
(2) DSP: to handle the algorithm of RX baseband signal and to control SPI, McBSP1 and McBSP3
TX OMAP5912
(1) ARM: To run MMI software, part of stack software and related peripheral devices such as UART1,
UART3, USB, KEYPAD, LCD and LED.
(2) DSP: to handle the algorithm of TX baseband signal and to control SPI, McBSP1 and McBSP3
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