Freescale Semiconductor /MK61F15WS /DDR /CR09

Text Text Text Text Text Text Text Text Text Text Text Text Text Text Text Text Text Text Text Text Text Text Text Text Text Text Text

Interpret as CR09

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 0TDLL0 (0)NOCMD 0RESERVED0 (000)BSTLEN 0RESERVED

BSTLEN=000, NOCMD=0

Description

DDR Control Register 9

Fields

TDLL

Time DLL

NOCMD

No Command

0 (0): Issue only REF and PRE commands during DLL initialization of the DRAM devices. If PRE commands are issued before DLL initialization is complete, the command is executed immediately and the DLL initialization continues.

1 (1): Do not issue any type of command during DLL initialization of the DRAM devices. If any other commands are issued, they are held until DLL initialization completes.

RESERVED

Reserved

BSTLEN

Burst Length

0 (000): Reserved.

1 (001): Two memory words - only applicable if the reduc parameter is set to 'b0 for operation in full datapath mode. Applicable for these memory systems: DDR1 (dram_class = 'b0000) LPDDR1 (dram_class = 'b0001).

2 (010): Four memory words. Applicable for these memory systems: DDR1 (dram_class = 'b0000) LPDDR1 (dram_class = 'b0001) DDR2 (dram_class = 'b0100).

3 (011): Eight memory words. Applicable for these memory systems: DDR1 (dram_class = 'b0000) LPDDR1 (dram_class = 'b0001).

4 (100): Reserved

7 (111): Reserved.

RESERVED

Reserved

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