Memory Mapping - Sony CXD5602 User Manual

2.6

Memory Mapping

Overview of Memory Map Configuration
Memory map is made up of three types of views. The "SYS View" can be referred from System and I/O Processor,
the "GNSS View" can be referred from the GNSS DSP, and the "APP View" can be referred from Application
Processor. The SYS Window, the GNSS Window, and the APP Window are defined so that each of them can be
accessed to the same address from its own processor.
The SYS Window defines addresses of the master device and the slave device inside the SYSIOP and the SCU.
The GNSS Window defines addresses of the master device and the slave device inside the GNSS, the APP
Window, inside the APP, as well.
Figure Memory Mapping-2 shows memory map configuration.
0x8FFFFFFF
0x80000000
0x0FFFFFFF
0x0C000000
0x08000000
0x04000000
0x00000000
Figure Memory Mapping-2 Memory Map of the SYSIOP, GNSS, and APP
SYS View GNSS View
Data Data
on SPI-Flash on SPI-Flash
APP Window APP Window
GNSS Window GNSS Window
SYS Window SYS Window
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CXD5602 User Manual
APP View
Data
on SPI-Flash
APP Window
GNSS Window
SYS Window