Motorola D10 Service Manual page 64

BenQ
Among these 5 LDOs, only R1, R2 and R2B are support with
back-up mode.
The power of Ulysse is supplied by these LDOs:
VDD: supplied by VR1 and used for core logic
VDDS1: supplied by VR2 and used for I/Os to memory devices
VDDS2: supplied by VR2B and used for I/Os to Nausica and
peripherals
VDDLMM: supplied by VR1 and used for Lead MegaModule (DSP)
VDDARM: supplied by VR1 and used for ARM
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Rev 1.0