Smc-networks ARM PL241 Manual do Utilizador descarregar pdf (Página 90)

Device Driver Requirements

5.1 Memory initialization

Figure 5-1 on page 5-3 and Figure 5-3 on page 5-5 shows the sequence of events that a

device driver must carry out to initialize the memory controller and a memory device to

ensure the configuration of both is synchronized.

Typically, PSRAM devices can have the mode register programmed using the address

bus only. NOR flash memory devices are examples of memory that requires mode

data buses. Check the data sheet for the specific memory device you are configuring to

determine the configuration method.

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Smc-networks ARM PL241 Manual do Utilizador Página 90