Figure 3-26. Spi And I2C Configuration - Motorola APX 3000 Detailed Service Manual

3-34
RF SECTION
DAC
EEPROM
ABACUS
TRIDENT
3.2.4.8.5 1-Wire
The OMAP's 1-wire line is available on the Main Board Connector J1 pin 9. The signal is routed
through Main flex.
3.2.4.8.6 USB
The OMAP CPU's USB port is routed to the side connector via J1. The USB signals on the side
connector are illustrated in
3.2.4.8.7 UARTs
Two of OMAP's UARTs are configured for peripheral interfacing.
The four-wire UART1, which is capable of hardware flow control, is available on the side connector
for accessory devices. The signals are level translated via MAKO and routed to the side connector
via J1.
OMAP's UART2, which is a two wire interface, capable of software flow control only, is connected to
the GPS receiver IC on the Main board.
DSP SPI
DAC_CS
SPI_DSP_CLK
3
SPI_DSP_MOSI
DSP SPI
SPI_DSP_MISO
EEPROM_CS
ABACUS_CS
ABACUS_CS
CODEC_CS

Figure 3-26. SPI and I2C Configuration

Figure 3-22.
CONTROLLER SECTION
ARM SPI
SPI_CLK
SPI_MOSI
McBSP3 SPIF
SPI_MISO
MAKO_CS
OMAP 1710
I2C
I2C_SCL
I2C
I2C_SDA
TI CODEC
Theory of Operation
: Controller
MAKO
LIGHTING
CONTROLLERS