Ocean Optics PC2000-PC_104 - Manual (Page 9)

PC2000-PC/104 Data Sheet
Command Port (Base +4) Bit Description
Writes to this 8-bit port control the spectrometer’s functionality.
Bit Function
7 MUX address bit 2
6 Enable board interrupt (1=enabled)
5 Master reset to clear FIFO (1=reset)
4 MUX address bit 1
3 MUX address bit 0
2 Spectrometer mode control S1
1
Spectrometer mode control S0
Multiplexed as Strobe enable (1=enabled)
0 Read enable (1=enabled)
Software Trigger Port (base + 5) Bit Description
Performing an 8-bit read from this port will provide the state of the Software Trigger input on the D3
line (i.e., Read Value & 0x04 to determine Trigger Input line state).
Read Spectral Data (base + 6) Bit Description
Performing a 16-bit read from this port will return one spectral data point. To obtain full spectra
perform 2048 reads after interrupt initiation. Raw data format is signed—invert bit 11 to convert to
unsigned (i.e. Data Value XOR’ed with 0x0800).
Channel Rotation Port (base + 7) Bit Description
Byte wide writes to this port activates or deactivates the rotator. If activated, the value written
determines the number of channels rotated through.
000-00000-000-05-0704 9