DFILPCFG1 (DDRC) Register

Zynq UltraScale+ Devices Register Reference (UG1087)

Document ID
UG1087
Release Date
2024-03-13
Revision
1.10

DFILPCFG1 (DDRC) Register Description

Register NameDFILPCFG1
Offset Address0x000000019C
Absolute Address 0x00FD07019C (DDRC)
Width32
TyperwNormal read/write
Reset Value0x00000000
DescriptionDFI Low Power Configuration Register 1

This register is static. Static registers can only be written when the controller is in reset.

DFILPCFG1 (DDRC) Register Bit-Field Summary

Field NameBitsTypeReset ValueDescription
dfi_lp_wakeup_mpsm 7:4rwNormal read/write0x0DDR4: Value to drive on dfi_lp_wakeup signal when Maximum Power Saving Mode is entered.
Determines the DFIs tlp_wakeup time:
- 0x0 - 16 cycles
- 0x1 - 32 cycles
- 0x2 - 64 cycles
- 0x3 - 128 cycles
- 0x4 - 256 cycles
- 0x5 - 512 cycles
- 0x6 - 1024 cycles
- 0x7 - 2048 cycles
- 0x8 - 4096 cycles
- 0x9 - 8192 cycles
- 0xA - 16384 cycles
- 0xB - 32768 cycles
- 0xC - 65536 cycles
- 0xD - 131072 cycles
- 0xE - 262144 cycles
- 0xF - Unlimited
dfi_lp_en_mpsm 0rwNormal read/write0x0DDR4: Enables DFI Low Power interface handshaking during Maximum Power Saving Mode Entry/Exit.
- 0 - Disabled
- 1 - Enabled