FPGA Programmer

(110) DAC Programmer

The DAC Programmer assigns DAC voltages according to the mask and values listed in the P-packet payload. The module always passes control to the Transmitter to send a D-packet, confirming the requested values.

Programming Details

Ports

• Clk: [in] clock
• Rst: [in] asynchronous reset

Write signals to the DAC Controller

• DAC_iGo: [out] active-low "Go" signal
• DAC_Addr: [out] 5-bit DAC channel address

[the 14-bit DAC value is synonymous with that passed to the DAC register. See below.]

State Register Control Lines

• state_En: [out] state register enable (write) signal
• state_D: [out] (3-bit) state register input
• state_Q: [in] (3-bit) state register output

DAC Register control lines

• DACReg_En: [out] ;
• --DACReg_Addr: [out] _VECTOR (4 downto 0);
• DACReg_D: [out] 14-bit voltage value for the register and DAC Controller
• DACReg_Q: [in] _VECTOR (15 downto 0);

Transceiver Control Lines

• TxRx_Go: [out] "Go" signal to read/write an EC control register byte
• TxRx_RiW: [out] active-high read, active-low write flag
• TxRx_Aout: [out] EC control register address (8-bit)
• TxRx_Din: [in] EC control register return value
• TxRx_Dout: [out] EC control register write value
• TxRx_Done: [in] "Done" signal from Transceiver