Motorola APX 7000 Detailed Service Manual page 66

3-42
Removable
Memory
GPS
UART 2
Chipset
(SiRF/ Ti)
FLASH
64 MB
SDRAM
32 MB
Keypad /
Switches
Front Display*
Front
(Part no.
Display*
72012006002)
Top Display
Figure 3-31. Overview of OMAP Interconnection with VOCON Peripherals
3.2.4.2 Memory
In addition to the internal RAM, the OMAP 1710 Processor (U6302) features three distinct external
memory interfaces. All memory devices except the removable memory, is located on the VOCON
board, as elaborated in
Lighting
Controller
CPLD
SDIO 2
I2C
EMIFS
EMIFS
OMAP 1710
Processor
EMIFF
SSI SPI
Keypad
RF
LCD Cont.
Board
SPI
Note:
(For part no.
*. Only for Dual-Display Version
72012006001 &
(For display part no. 72012006002)
Figure 3-30. The external memory interface is shown in
4.096 MHz Clk
MACE
SSI
Secure
IC
32 kHz Clk
Audio SSI 1
USB /
UART
SPI
USB
SDIO 1
I2C
Option
Board
GPIO
Theory of Operation
Side
Conn-
GCAI
Mako IC
SPI
Codec
Class D
Audio PA
Figure
: Controller
Vocon
Expansion
Module
GCAI
3-32.