TDT RZ2 Manual page 466

10-52
Bit0
Bit1
Bit2
A poke component is used to send the resulting value to memory address 51 on the
RZ5 processor or memory address 3 on the RX7. The Poke RPvdsEx component
writes values to a specific device memory location and should be used with care.
Using the Switching Headstage with Other Devices
When using the SH16/SH16-Z with hardware other than a microstimulator system,
connect as follows:
SH16
The Serial Control Bit Pattern that controls connection of a given channel to the
Stimulus Isolator can be sent using any 3 digital logic lines that will produce a +3V
logic signal. Circuit design is similar to the example above, designed for use with
the RZ5 and RX7 processors, but must be modified by routing Bit 0, Bit 1, and Bit
2 to the appropriate digital outputs of the device (instead of using the Poke
component).
Note: The serial clock (Bit 2) on the SH16/SH16-Z can be run at a maximum rate of
5 MHz for other devices.
Technical Specifications
Headstage Gain
Input Impedance
SH16/SH16‐Z Pinout Diagrams
PreAmp Connector
For SH16 headstages with serial numbers <2000, the DB25 connector labeled
Preamp must be connected as it supplies power to the headstage. For headstages
with serial numbers >2000, this connector does not need to be connected if the
user is not recording on the non-stimulating channels.
SH16 Switchable Headstages
Headstage Relay Register
[1:5,0] [1:6,0]
FromBits iOr
Rst=0 N=248
b0=0
Bit0 is the load pulse for loading data
b1=0
b2=0
Bit1 is the serial data line
b3=0
b4=0
b5=0
Bit2 is the serial clock for the data
T o base station with
fiber optic input
RA16PA
Preamp
Unity (1x)
10 Ohms
14
System 3
[1:7,0]
Poke
Addr=51
S tim ulation input to headstage
Control device p roduc ing
3V logic signal
Control Stimulator