SPRUJ55D September 2023 – July 2025 AM263P2 , AM263P2-Q1 , AM263P4 , AM263P4-Q1
The front end is responsible for latching, demuxing, and optional averaging the sin/cos inputs before it is presented to the RDC modules.
Mode | External Resolvers connected | ADCs used | RDC Cores used | Sample Sequence _sX indicates Xth sample | Note |
|---|---|---|---|---|---|
0 | Resolver0(R0) | ADCR0 and ADCR1 | RDC Core-0 | R0sin_ADCR0_s0 + R0cos_ADCR1_s0 | Sampling of R0's sin and cos signals concurrently across the ADCR0 and ADCR1. This is the Default mode of operation. |
1 | Resolver0(R0) | ADCR0 | RDC Core-0 | R0sin_ADCR0_s0 -> R0cos_ADCR0_s0 | Sampling of R0's sin and cos signals in a staggered manner by ADCR0. |
2 | Resolver0(R0) | ADCR0 | RDC Core-0 | R0sin_ADCR0_s0 -> R0cos_ADCR0_s0 -> R0cos_ADCR0_s1 -> R0sin_ADCR0_s1 -> | Sampling of R0's sin and cos signals in a staggered manner by ADCR0. The 2 samples of sin are averaged and 2 samples of cos are averaged.Averaging enabled |
3 | Resolver0(R0) and Resolver1(R1) | ADCR0 and ADCR1 | RDC Core-0 and RDC Core-1 | R0sin_ADCR0_s0 + R0cos_ADCR1_s0 -> R1sin_ADCR0_s0 + R1cos_ADCR1_s0 -> | Sampling of R0's sin and cos signals concurrently across ADCR0 and ADCR1. Followed by the sampling of R1's sin and cos signals concurrently across ADCR0 and ADCR1. So, the delay is staggered between the 2 resolvers. |
4 | Resolver0(R0) and Resolver1(R1) | ADCR0 and ADCR1 | RDC Core-0 and RDC Core-1 | R0sin_ADCR0_s0 + R1sin_ADCR1_s0 -> R0cos_ADCR0_s0 + R1cos_ADCR1_s0 -> | Sampling of sin signals of both R0 and R1 concurrently across ADCR0 and ADCR1. Followed by the sampling of cos signals of both R0 and R1 concurrently across ADCR0 and ADCR1. So, the delay is staggered between the sin and cos signals. |
5 | Resolver0(R0) and Resolver1(R1) | ADCR0 and ADCR1 | RDC Core-0 and RDC Core-1 | R0sin_ADCR0_s0 + R1sin_ADCR1_s0 -> R0cos_ADCR0_s0 + R1cos_ADCR1_s0 -> R0cos_ADCR0_s1 + R1cos_ADCR1_s1 -> R0sin_ADCR0_s1 + R1sin_ADCR1_s1 -> | Sampling of sin signals of both R0 and R1 concurrently across ADCR0 and ADCR1. Followed by the sampling of cos signals of both R0 and R1 concurrently across ADCR0 and ADCR1. Followed by the sampling of cos signals of both R0 and R1 concurrently across ADCR0 and ADCR1. Followed by the sampling of sin signals of both R0 and R1 concurrently across ADCR0 and ADCR1. The 2 samples of sin are averaged and 2 samples of cos are averaged for the respective Resolvers.Averaging enabled So, the delay is staggered between the sin and cos signals. |
The Resolver modes from above are explained using the below diagrams: