AN2633 datasheet(27/48 Pages) STMICROELECTRONICS

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AN2633

STR91xFA library low power mode functions

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2.14

FMI_Config

FMI_ReadWaitState

The FMI read wait states that can be selected are listed in the following table. These wait

states are only related to access of non sequential addresses. There are no wait states for

sequential accesses.

FMI_WriteWaitState

The FMI write wait states that can be selected are listed in the following table:

FMI_PWD

FMI power down mode can be selected as listed in the following table:

Function name

FMI_Config

Function prototype

void FMI_Config(u16 FMI_ReadWaitState, u32 FMI_WriteWaitState, u16

FMI_PWD, u16 FMI_LVDEN, u16 FMI_FreqRange

Behavior description

Configures the FMI

Input parameter 1

Fmi_ReadWaitState : Specifies FMI_ReadWaitState: specifies the read

wait state value.

Refer to Table 8: FMI_ReadWaitState for the allowed values.

Input parameter 2

FMI_WriteWaitState: specifies the read wait state value.

Refer to Table 9: FMI_WriteWaitState for the allowed values.

Input parameter 3

FMI_PWD: specifies the power down mode stat us.

Refer to Table 10: FMI_PWD for the allowed values.

Input parameter 4

FMI_LVDEN: specifies the low voltage detector mode status.

Refer to Table 11: FMI_LVDEN for the allowed values.

Input parameter 5

FMI_FreqRange: specifies the working frequency range.

Refer to Table 12: FMI_FreqRange for the allowed values.

Output parameter

None

Return parameter

None

Required preconditions

None

Called functions

None

Table 8.

FMI_ReadWaitState

Meaning

FMI_READ_WAIT_STATE_1

1 read wait state

FMI_READ_WAIT_STATE_2

2 read wait states

FMI_READ_WAIT_STATE_3

3 read wait states

Table 9.

FMI_WriteWaitState

Meaning

FMI_WRITE_WAIT_STATE_0

0 write wait state

FMI_WRITE_WAIT_STATE_1

1 write wait states

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