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Register Descriptions
Chapter 4
SCXI-1160 User Manual
4-2
© National Instruments Corporation
Table 4-1. Register Addresses
Address
(Hexadecimal)
Register
0000
Module ID Register
0001
Data Register
0002
Status Register
0003-FFFE
Reserved
FFFF
Parking Register
After you are finished writing, the D*/A line goes low, indicating a data transfer to a register.
This enables the Address Handler output and selects the appropriate register.
At the end of each communication with the Module ID Register, the Data Register, or the Status
Register, select the Parking Register (write address FFFF to the Address Handler). This
increases the noise immunity of the module when it is in its quiescent state.
After you select the Parking Register, SS* should go high, deselecting the modules and latching
all the data.
At reset or at power up, the Address Handler content is cleared.