Real-Time NCO Signal Interface Ports for Dual RF-ADCs - 2.6 English

Zynq UltraScale+ RFSoC RF Data Converter Gen 1/2/3/DFE LogiCORE IP Product Guide (PG269)

Document ID
PG269
Release Date
2022-10-21
Version
2.6 English
Table 1. Real-Time NCO Signal Interface Ports for Dual RF-ADCs
Port Name 1 I/O Clock Description
adcX_ZZ_nco_freq[47:0] In s_axi_aclk Requested NCO frequency setting. This is a 48-bit signed input representing the NCO frequency. The value ranges from -Fs/2 to Fs/2, where Fs is the sampling rate.
adcX_ZZ_nco_phase[17:0] In s_axi_aclk Requested NCO phase setting. This is a 18-bit signed number representing the NCO phase. The value ranges from -180 to 180 degrees.
adcX_ZZ_nco_phase_rst In s_axi_aclk NCO phase reset. Used to align the phases across the converter.
adcX_ZZ_nco_update_en[5:0] In s_axi_aclk Enable register writes
  • Bit 5: Enable write to phase reset
  • Bit 4: Enable write to NCO phase bits 17:16
  • Bit 3: Enable write to NCO phase bits 15:0
  • Bit 2: Enable write to NCO frequency bits 47:32
  • Bit 1: Enable write to NCO frequency bits 31:16
  • Bit 0: Enable write to NCO frequency bits 15:0
adcX_nco_update_req In s_axi_aclk Asserted High to request an update of the NCO settings.
adcX_nco_update_busy Out s_axi_aclk Update busy register. High when the NCO update is in progress.
  1. X refers to the location of the tile in the converter column. ZZ is either 01 (the lower RF-ADC in the tile) or 23 (the upper RF-ADC in the tile)