Register-Based Programming 95Appendix B
Switch Enable
Registers You write to the switch enable registers to close (or open) a channel. Write
a "1" to the register to close a relay (channel). Write a "0" to the register to
open a relay (channel). Reading any Switch Enable Register will alwa ys
return FFFF16 regardless of the channel states.
Switch Enable Register (Channels 0 - 15)
Address
b+1016
15 14 13 12 11 10 9876543210
Write Ch15 Ch14 Ch13 Ch12 Ch11 Ch10 Ch09 Ch08 Ch07 Ch06 Ch05 Ch04 Ch03 Ch02 Ch01 Ch00
Read Always returns FFFF16
Switch Enable Register (Channels 16 - 31)
Address
b+1216
15 14 13 12 11 10 9876543210
Write Ch31 Ch30 Ch29 Ch28 Ch27 Ch26 Ch25 Ch24 Ch23 Ch22 Ch21 Ch20 Ch19 Ch18 Ch17 Ch16
Read Always returns FFFF16
Switch Enable Register (Channels 32 - 47)
Address
b+1416
15 14 13 12 11 10 9876543210
Write Ch47 Ch46 Ch45 Ch44 Ch43 Ch42 Ch41 Ch40 Ch39 Ch38 Ch37 Ch36 Ch35 Ch34 Ch33 Ch32
Read Always returns FFFF16
Switch Enable Register (Channels 48 - 63)
Address
b+1616
15 14 13 12 11 10 9876543210
Write Ch63 Ch62 Ch61 Ch60 Ch59 Ch58 Ch57 Ch56 Ch55 Ch54 Ch53 Ch52 Ch51 Ch50 Ch49 Ch48
Read Always returns FFFF16