Ocean Optics Apex User Manual
Page 13
Apex Data Sheet
892-00000-000-05-201302
13
Byte Format
Byte 0
0xFE
Return Format
The data is returned in Binary format and read in by the host through End Point 1 In. The structure for
the return information is as follows
Byte Description
Comments
0-1
Number of Spectral Data Values – WORD(s)
LSB | MSB order
2-5
Integration Time - WORD
Integration time in
µs – LSW | MSW.
Within each word order is LSB | MSB
6
Lamp Enable
0 – Signal LOW
1 – Signal HIGH
8
Spectral Acquisition Status
For internal use
9
Packets In Spectra
Returns the number of Packets in a
Request Spectra Command.
10
Power Down Flag
0 – Circuit is powered down
1 – Circuit is powered up
11
Packet Count
Number of packets that have been
loaded into End Point Memory
12
Reserved
13
Reserved
14
USB Communications Speed
0 – Full Speed (12Mbs)
0x80 – High Speed (480 Mpbs)
15
Reserved