Figure 3-27. Audio Ssi Configuration - Motorola APX 1000 Detailed Service Manual

Theory of Operation
: Controller
RED TX
CODECs
RED RX
3.2.4.8.3 ARM SPI
This SPI interface is controlled by OMAP's ARM core. Devices connected to this bus include MAKO,
display controllers and the audio CODEC.
3.2.4.8.4 DSP SPI
This SPI interface is controlled by the DSP core of the OMAP processor. This bus is used to
configure and control devices on the RF deck.
RF SECTION
DAC
EEPROM
ABACUS
TRIDENT
MACE
RD 1
SSC 1
TD 1
( Red )
TD 3
0
1

Figure 3-27. Audio SSI Configuration

DSP SPI
DAC_CS
SPI_DSP_CLK
3
SPI_DSP_MOSI
DSP SPI
SPI_DSP_MISO
EEPROM_CS
ABACUS_CS
ABACUS_CS
CODEC_CS
RD 2
SSC 2
(Sniffer)
RD 0
SSC 0
TD 0
PA 28 (GPIO)
(Black)
Hi_Sec */Normal
0
1
CPLD
CONTROLLER SECTION
SPI_CLK
SPI_MOSI
McBSP3 SPIF
SPI_MISO
MAKO_CS
OMAP 1710
COLOR_DIS_CS
I2C_SCL
I2C
I2C_SDA
TI CODEC
Keypad Board
Main Board
BLACK or
RED RX
BLACK or
RED TX
ARM SPI
MAKO
FRONT DISPLAY
CPLD
Inverter
I2C
LIGHTING
CONTROLLERS
3-37
OMAP