340747b.pdf AT-MIO E series Register Level Programmer Manual
341079b.pdf PCI E Series RLPM
340934b.pdf DAQ-STC reference manual
- 67xx and 611x registers (from http://www.ni.com/pdf/daq/us)
+ 67xx and 611x registers (from ftp://ftp.ni.com/support/daq/mhddk/documentation/)
release_ni611x.pdf
release_ni67xx.pdf
Other possibly relevant info: