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ST20-GP1 Datasheet(PDF) 49 Page - STMicroelectronics

Part # ST20-GP1
Description  GPS PROCESSOR
PDF  116 Pages
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Manufacturer  STMICROELECTRONICS [STMicroelectronics]
Direct Link  http://www.st.com
Logo STMICROELECTRONICS - STMicroelectronics

ST20-GP1 Datasheet(HTML) 49 Page - STMicroelectronics

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8
Memory subsystem
The memory system consists of SRAM and a programmable memory interface. The specific details
on the operation of the memory interface are described separately in Chapter 9.
8.1
SRAM
There is an internal memory module of 4 Kbytes of SRAM. The internal SRAM is mapped into the
base of the memory space from MinInt (#80000000) extending upwards, as shown in Figure 8.1.
This memory can be used to store on-chip data, stack or code for time critical routines.
Figure 8.1 SRAM mapping
Where internal memory overlays external memory, internal memory is accessed in preference.
SRAM
External
memory
MinInt #80000000
#80001000



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