User`s manual

ID Register
b +001514131211109876543210
Write Undefined (Logical Address)
Read* Reg-Base A16 Manufacturer ID
* Returns FFFF
h
= Agilent Technologies A16 only register-based
Device Type Register
b +021514131211109876543210
Write Undefined
Read* 1 (A16 only) Module ID Code
* Returns: FF08
h
=48-Channel Single Ended Relay Multiplexer (E1346A)
Status/Control Register
b +041514131211109876543210
Write* Undefined R
Read** B
* R = Multiplexer reset to power-on state (all switches open) ** B = Status "busy" is true low in bit #7 (FF7F
h
)
Tree Switch Register
b +061514131211109876543210
Write* Undefined 93 92 91 90
Read Always returns FFFF
h
* Write "1" closes switch, write "0" opens switch
Channel Register and Corresponding Tree Switch Bits
b +061514131211109876543210
Write* 90
b +081514131211109876543210
Write*
CH31 CH30 CH29 CH28 CH27 CH26 CH25 CH24 CH07 CH06 CH05 CH04 CH03 CH02 CH01 CH00
b +06 151413121110 9 8 7
6
543210
Write* 91
b +081514131211109876543210
Write*
CH39 CH38 CH37 CH36 CH35 CH34 CH33 CH32 CH15 CH14 CH13 CH12 CH11 CH10 CH09 CH08
b +061514131211109876543210
Write* 92
b +081514131211109876543210
Write*
CH47 CH46 CH45 CH44 CH43 CH42 CH41 CH40 CH23 CH22 CH21 CH20 CH19 CH18 CH17 CH16
Read Always returns FFFF
h
* Write "1" closes channel, write "0" opens channel
Figure B-3. Multiplexer Register Definitions
Appendix B Agilent E1346A Multiplexer Registers 69