RHS2116 Trigger

Authors:

Jonathan P. Newman

Version:

1

IO:

Register Access

ONIX ID:

32

Description

The RHS2116 Trigger device generates triggers and for Intan RHS2116 bioamplifier and stimulator chip(s) either from a remote source via external SYNC pin or locally via GPIO or TRIGGER register. This device can be used to synchronize stimulus application and recovery across chips.

Register Programming

Address	Name	Access	Time of Effect	POR Value	Reset Action	Description
0x00	ENABLE	R/W	N/A	N/A	N/A	ONI required enable register This register has no effect. Writes will be ignored without error.
0x01	TRIGGERSOURCE	R/W	Immediate	0	None	The LSB is used to determine the trigger source 0x0: Transmitter. Respect local triggers (e.g. via GPIO or TRIGGER register) and broadcast via sync pin. If multiple chips are connected to the SYNC pin, then this device becomes a transmitter to trigger stimulation sequences other RHS2116 Trigger devices with TRIGGERSOURCE = 0x1 (receiver). 0x1: Receiver. Only resepct triggers received from sync pin.
0x02	TRIGGER	W	Immediate	0	None	A 32-bit value, [dly_19, dly_18, ..., dly_0, X, X, ..., X, trigger], that initiates a stimulus sequence if the TRIGGERSOURCE is set to 0x0: dly_n : global delay for application of stimulus sequence in units of sample periods. trigger: When set to 0b1, trigger stimulation sequence (subject to global delay). This bit is reset to 0 following application. Regardless, this register is automatically be reset to 0x0 immediately after writing to it.
0x03	TRIGGERARMED	R/W	Immediate	0x1	None	Writing 0x0 to this register will cause the device to ignore all trigger inputs regardless of TRIGGERSOURCE. Writing 0x1 to this register will cause the device to respect the trigger input specified by TRIGGERSOURCE.

Device To Host Data Frames

No frames are transmitted to the host.

Host To Device Data Frames

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