User guide

UG_6631_078 78M6631 Firmware Description Document

Rev 2 23

5.3.1 High-Rate Results Registers

There is a set of registers that are updated at a high rate. Although accessible by both UART and SPI, it

is recommended to use SPI. The SPI interface if faster than the UART and does not require any FW

overhead and latency, having direct access to the memory.

Name

CLI

Addr

(Hex)

SPI

Addr

(Hex)

Description

VA 10 40 Voltage – Phase A

Voltage – Phase B

VC 30 C0 Voltage – Phase C

VqA 11 44 Quadrature Voltage A

VqB 21 84 Quadrature Voltage B

VqC 31 C4 Quadrature Voltage C

IA 12 48 Current – Phase A

Current – Phase B

IC 32 C8 Current – Phase C

Vsine 40 100 Sine reference

Vcosine 41 104 Cosine reference