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UM0851 Datasheet(PDF) 144 Page - STMicroelectronics

Part # UM0851
Description  SPEAr is a family of highly customizable ARM-based embedded
PDF  245 Pages
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Manufacturer  STMICROELECTRONICS [STMicroelectronics]
Direct Link  http://www.st.com
Logo STMICROELECTRONICS - STMicroelectronics

UM0851 Datasheet(HTML) 144 Page - STMicroelectronics

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Non-volatile memory device drivers
UM0851
144/245
Doc ID 16604 Rev 2
Figure 37.
The interface between NOR Flash and SMI controller
5.3.2
Software overview
The NOR device driver sits on top of the SMI controller and provides all necessary functions
for a file system via the standard Linux MTD interface. In the SPEAr platform, SMI controller
is dedicated to serial NOR Flash only. Therefore separate APIs for controlling the SMI are
not available. The NOR device driver controls the functionality of SMI by directly accessing
the SMI registers.
SMI clock
prescaler
SMI data
processing and control
Serial NOR
Flash
SMI
controller
Clock
Data,
command,
Bank select
Data,
Status



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