356 RHD2164-MCU-SPI Bridge

356 : RHD2164-MCU-SPI Bridge

Design render

How it works

This design implements a custom SPI module to interface with RHD2164 neural amplifier chips and selects specific channels to transfer the data to a MCU via SPI. The design also implements a register bank accessible either by SPI or scanchain/shift register.

How to test

To be added.

External hardware

You can test this chip in two different ways.

1. Connect the chip to an FPGA and use the RHD2164 emulator and MCU-SPI emulator available here. The register bank is tested using any MCU.

2. Connect the chip to a RHD2164 neural amplifier chip in CMOS mode or in LVDS mode using LVDS-to-CMOS adapters. The selected data is connected to any MCU which is also connected to the register bank.

IO

#InputOutputBidirectional
0SC_SDIRHD_MOSIRHD_MISO0
1SC_SCLKRHD_SCKRHD_MISO1
2SC_SENRHD_CSbMCU_MOSI
3REG_MOSIMCU_MISOMCU_SCK
4REG_SCKSC_SDOMCU_CSb
5REG_CSbREG_MISOSELM0
6SR_CLKSR_DO
7SR_EN

Chip location

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