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

H1111111111111 1111.111111HIVRead ADC Extended Precision0 5 8 11 16 20 26 31Op code R Fun Zeros Mod DA MA0 0 0 0 1 XXXO 1 0 0 0 0 0 0 0 0 0 1 1 0 0 1 0 OXXXXXXI 1 1 I ii 1 1 I 1 1 1 III 1 I I 1 1 11111••■■•••,,,.■,`,..........■,••■■■•,,•■••,••■••••,•■■••••■■•••■•■•."'",""Ne".....".."■••••••••*""N"Nemw•O 8-F 4 0 1 9 0-3 XThis command stores in standard form (14 bits plus sign) the binary output value from theADC when automatic amplifier gain was selected by the last convert command.The binary output value resulting from the last conversion cycle is stored in the indexregister (R), or the accumulator if R=000. The data transferred to the register has theformat:O 1 15S Data OLFourteen bits of, binary data plus sign (S bit) are returned. The single-bit OL field isset on if an overload condition occurred with the automatic amplifier gain selection.Note that the automatically selected gain is not returned with the data. This gain can bedetermined by issuing a read-ADC command before or after the read-ADC-extended-precisioncommand.Read ISWO 5 8 11 16 20 26 31Op code R Fun Zeros Mod DA MA0 0 0 0 1 XXX 0 1 0 0 0 0 0 0 0 0 1 1 1 0 0 1 0 0 XXXXXX1 i 1 I II II MI II IIIII 11111'''"...\..•••■''"■•••Ne•••••,"•••■•■.s,,..■•,....om,,,■,•••■•s,,o■W•■••■.,,+•rv•,•■•/'■••••■/••••'O 8-F 4 0 3 9 0-3 XThis command stores the 16-bit interrupt status word (ISW) associated with the analog inputcontrol into the index register (R), or the accumulator if R=000.Interrupt Status Word (ISW): The 16 bits in the interrupt status word are set by conditionsoccurring after a convert-analog-input or convert-analog-input-with-external-synchronizationcommand is completed but while the device is still busy. Since these errors cannot beindicated to the program by the condition code, interruptions result from setting on anyISW bit except the busy bit. Setting on any one of bits 3 through 7 also sets on the summarystatus indicator when the resulting interruption request occurs. After the interruptionis accepted, the execution of any command directed to the analog input control resetsthe ISW.