IBM System/7 Functional Characteristics - All about the IBM 1130 ...

Read ADC0 5 8 11 16 20 26 31Op code Fun Zeros Mod DA MA0 0 0 0 1 X X X 0 1 0 00000 0 0 0 0 1 0 0 1 0 0 XXXXXX1111 i 1111 11111 lilt,0 8-F 4 0 0 9 0-3 XThis command stores the binary output value from the ADC into the index register (R), orthe accumulator if R=000.Data stored in the register can have either of two formats, depending upon whether thelast convert command requested automatic gain or selected a particular amplifier gain. Ifautomatic gain was requested, the 16 bits of data have the format:0 1 13 15S Data R R R11 III 11 1111 11s.s.111.,■■••••■■,,..111m,S■v•■•■■•••••■■,,■•••■Twelve bits of binary data plus sign (S bit) are returned. The RRR field indicates whichamplifier gain was automatically selected by the amplifier. (Refer to the table in the"Convert Analog Input" command description.) If RRR=000, an overload conditionoccurred with the automatic gain selection.If a particular amplifier gain was selected by the last convert command, the 16 bits ofdata have the format:0 1 15S Data OL1111111111111_••••■•■•enwor's■••.„,••■•"X X X XFourteen bits of binary data plus sign (S bit) are returned. The single-bit OL field isset on if an overload condition occurred with the program-selected amplifier gain.IBM 5012 Multifunction Module Model Al 13-7