Maxim Integrated 78M6631 - Manual (Page 23)

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.
Register
Name
CLI
Addr
(Hex)
SPI
Addr
(Hex)
Description
VA 10 40 Voltage – Phase A
VB 20 80 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
IB 22 88 Current – Phase B
IC 32 C8 Current – Phase C
Vsine 40 100 Sine reference
Vcosine 41 104 Cosine reference