NXP Semiconductors /LPC408x_7x /SYSCON /EMCDLYCTL

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Interpret as EMCDLYCTL

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 0CMDDLY0RESERVED 0FBCLKDLY0RESERVED 0CLKOUT0DLY0RESERVED 0CLKOUT1DLY0RESERVED

Description

Values for the 4 programmable delays associated with SDRAM operation.

Fields

CMDDLY

Programmable delay value for EMC outputs in command delayed mode. See Section 9.12.6. The delay amount is roughly (CMDDLY+1) * 250 picoseconds. This field applies only when the command delayed read strategy is selected in the EMCDynamicReadConfig register. In this mode, all control outputs from the EMC are delayed, but the output clock is not. Delaying the control outputs changes dynamic characteristics defined in the device data sheet.

RESERVED

Reserved. Read value is undefined, only zero should be written.

FBCLKDLY

Programmable delay value for the feedback clock that controls input data sampling. See Section 9.5.3. The delay amount is roughly (FBCLKDLY+1) * 250 picoseconds.

RESERVED

Reserved. Read value is undefined, only zero should be written.

CLKOUT0DLY

Programmable delay value for the CLKOUT0 output. This would typically be used in clock delayed mode. See Section 9.12.6 The delay amount is roughly (CLKOUT0DLY+1) * 250 picoseconds. Delaying the clock output changes dynamic characteristics defined in the device data sheet.

RESERVED

Reserved. Read value is undefined, only zero should be written.

CLKOUT1DLY

Programmable delay value for the CLKOUT1 output. This would typically be used in clock delayed mode. See Section 9.12.6 The delay amount is roughly (CLKOUT1DLY+1) * 250 picoseconds.

RESERVED

Reserved. Read value is undefined, only zero should be written.

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