D/S Three Channel (Module 6*)68C3 Operations Manual North Atlantic Industries, Inc. 12/19/2014Rev: 2014-12-19-0947 www.naii.com Page 245 of 330REGISTER D15 D14 D13 D12 D11 D10 D9 D8 D7 D6 D5 D4 D3 D2 D1 D0 FUNCTION0000000000005242.882621.441310.72655.36approximate valueREF FREQUENCY HI D D D D D D D D D D D D D D D D D=DATA BIT (Hz)OSC (Optional Onboard Reference Supply) Set VoltageType: 16-bit unsigned integerRange: 2.0 to 28.0 VRMS, or 115 VRMSRead/Write: R/WInitialized Value: N/AProgram Reference Voltage, where LSB is 0.01 VRMS. For example: To program 26.1 VRMS, 26.1 x 100= 2610,which equals 0xA32. In this example, 0x0000 would be programmed in the Reference Voltage High register, and0x0xA32 would be programmed in the Reference Voltage Low register. To program 115 VRMS, 115 x 100=11,500, which equals 0x2CEC. In this example, 0x0000 would be programmed in the Reference Voltage Highregister, and 0x2CEC would be programmed in the Reference Voltage Low register. Note: Reference VoltageHigh register always remains at 0x0000.REGISTER D15 D14 D13 D12 D11 D10 D9 D8 D7 D6 D5 D4 D3 D2 D1 D0 FUNCTION0081.9240.9620.4810.245.122.561.280.640.320.160.080.040.020.01approximate valueREF VOLTAGE LO D D D D D D D D D D D D D D D D D=DATA BIT (V)REGISTER D15 D14 D13 D12 D11 D10 D9 D8 D7 D6 D5 D4 D3 D2 D1 D0 FUNCTION0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 approximate valueREF VOLTAGE HI D D D D D D D D D D D D D D D D D=DATA BIT (V)Interrupt VectorWrite 16-bit integer (0-255). Used for failure reports.The Interrupt Vector Registers store the vectors for the specific interrupts generated by the module. If the samevector is loaded into each register, the same interrupt routine will be invoked by all interrupts. If unique vectors areloaded into the registers, a different Interrupt Service Routine (ISR) can be invoked by each interrupt.The Signal Loss interrupt vector will be serviced when the Signal Loss status is set and the interrupt has beenenabled.The Reference Loss interrupt vector will be serviced when the Reference Loss status is set and the interrupt hasbeen enabled.The BIT interrupt vector will be serviced when the Bit (failure) status is set and the interrupt has been enabled.The Lock Loss interrupt vector will be serviced when the Lock Loss status is set and the interrupt has beenenabled.
