LPDDR3 support for TK1

Autonomous Machines Jetson & Embedded Systems Jetson TK1
1

Hello all,

I would like to know if LPDDR3 RAM is supported in L4T package for Tegra K1 SoC.

Tegra K1 TRM says that LPDDR3 and DDR3L are supported. But the document “TegraK1_MemoryCharacterization_AppNote_DA07217003v02.pdf” says that “NOTE: LPDDR3 is NOT supported with L4T”. Can anyone please confirm?

Thanks.

2

LPDDR3 RAM is not supported in L4T package for TK1 SOC.
TK1 chip DRAM interface could support both LPDDR3 and DDR3L.
But on Jetson TK1 platform/L4T, we only qualify the DDR3L memory.
On Shield tablet platform/Android, LPDDR3 is qualified.
The LPDDR3 require a 1.2v power instead of 1.35v for DDR3L.
The current AS3722 PMIC used on JTK1 can’t provide 1.2v for LPDDR3
Shield tablet used another TI PMIC and support battery charge function

3

Thanks for your reply. So, LPDDR3 is not supported by the AS3722 PMIC chip. If I can use a PMIC chip which can supply 1.2v, can I use LPDDR3 in the L4T package itslef?

4

Yes, This is not official support, But it should be work.
For the software, It’s just the memory timing config file change.