RHD2164

Authors:

Jie (Jack) Zhang, Jonathan P. Newman

Version:

1

IO:

Frame Source, Register Access

ONIX ID:

3

ONIX Hubs:

Headstage-64

Description

The RHD2164 ONIX device acquires data from an Intan RHD2164 bioamplifier chip.

Register Programming

Managed Registers

Managed register access is provided at offset 0x8000.

Managed Registers

Address	Name	Access	Time of Effect	POR Value	Reset Action	Description
0x10000	ENABLE	R/W	On Reset	Implementation dependent, see hub documentation	None	The LSB is used to enable or disable the device data stream: 0x0: data output disabled 0x1: data output enabled

Unmanaged Registers

Direct, unmanaged read and write access is provided to the registers detailed in the RHD2000 series datasheet. They are reproduced here for clarity, but the datasheet should be consulted for their exact function.

Warning

All registers are accessible, but some of them are dependent on the sample rate which may be hard-coded. See hub documentation for details.

Unmanaged Registers

Address	Name	Access	Time of Effect	POR Value	Reset Action	Description
0x00	ADCCONF	R/W	On Reset	“11011110”	None	ADC Configuration and Amplifier Fast Settle
0x01	ADCBUFF	R/W	On Reset	“00000010”	None	Supply Sensor and ADC Buffer Bias Current
0x02	MUXBIAS	R/W	On Reset	“00000100”	None	MUX Bias Current
0x03	MUXLOAD	R/W	On Reset	“00000010”	None	MUX Load, Temperature Sensor, and Auxiliary Digital Output
0x04	FORMAT	R/W	On Reset	“00011111”	None	ADC Output Format and DSP Offset Removal
0x05	ZCHECK	R/W	On Reset	“00000000”	None	Impedance Check Control
0x06	DAC	R/W	On Reset	“00000000”	None	Impedance Check DAC
0x07	ZSELECT	R/W	On Reset	“00000000”	None	Impedance Check Amplifier Select
0x08	BW0	R/W	On Reset	“00010001”	None	On-Chip Amplifier Bandwidth Select 0
0x09	BW1	R/W	On Reset	“10000000”	None	On-Chip Amplifier Bandwidth Select 1
0x0a	BW2	R/W	On Reset	“00010000”	None	On-Chip Amplifier Bandwidth Select 2
0x0b	BW3	R/W	On Reset	“10000000”	None	On-Chip Amplifier Bandwidth Select 3
0x0c	BW4	R/W	On Reset	“00010000”	None	On-Chip Amplifier Bandwidth Select 4
0x0e	BW5	R/W	On Reset	“11011100”	None	On-Chip Amplifier Bandwidth Select 5
0x0f	PWR0	R/W	On Reset	“11111111”	None	Individual Amplifier Power 0
0x10	PWR1	R/W	On Reset	“11111111”	None	Individual Amplifier Power 1
0x11	PWR2	R/W	On Reset	“11111111”	None	Individual Amplifier Power 2
0x12	PWR3	R/W	On Reset	“11111111”	None	Individual Amplifier Power 3
0x13	PWR4	R/W	On Reset	“11111111”	None	Individual Amplifier Power 4
0x14	PWR5	R/W	On Reset	“11111111”	None	Individual Amplifier Power 5
0x15	PWR6	R/W	On Reset	“11111111”	None	Individual Amplifier Power 6
0x16	PWR7	R/W	On Reset	“11111111”	None	Individual Amplifier Power 7

Device To Host Data Frames

Each frame transmitted to the host consists of a 64 ephys + 3 auxiliary channel round robbin sample:

All voltages are unsigned, 16-bit integers.

Host To Device Data Frames

This device does not accept input frames. All write attempts will fail with an error.