NXP Semiconductors /LPC176x5x /SYSCON /FLASHCFG

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Interpret as FLASHCFG

31 2827 2423 2019 1615 1211 87 43 0 0 0 0 0 0 0 0 00 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0RESERVED0 (1CLK)FLASHTIM 0RESERVED

FLASHTIM=1CLK

Description

Flash Accelerator Configuration Register. Controls flash access timing.

Fields

RESERVED

Reserved, user software should not change these bits from the reset value.

FLASHTIM

Flash access time. The value of this field plus 1 gives the number of CPU clocks used for a flash access. Warning: improper setting of this value may result in incorrect operation of the device. Other values are reserved.

0 (1CLK): Flash accesses use 1 CPU clock. Use for up to 20 MHz CPU clock.

1 (2CLK): Flash accesses use 2 CPU clocks. Use for up to 40 MHz CPU clock.

2 (3CLK): Flash accesses use 3 CPU clocks. Use for up to 60 MHz CPU clock.

3 (4CLK): Flash accesses use 4 CPU clocks. Use for up to 80 MHz CPU clock.

4 (5CLK): Flash accesses use 5 CPU clocks. Use for up to 100 MHz CPU clock. Use for up to 120 Mhz for LPC1759 and LPC1769 only.

5 (6CLK): Flash accesses use 6 CPU clocks. This safe setting will work under any conditions.

RESERVED

Reserved. The value read from a reserved bit is not defined.

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