Specifications

VA6x User’s Reference405-00022-00
33Rev 00; 16 October 2007
APPENDIX C
SHERLOCK DIGITAL I/O ASSIGNMENTS
The Trigger 1 input is assigned to GPI0 (input channel 0), and Trigger 2 input is assigned to GPI4
(input channel 4). The inputs are always available, even when assigned as a triggers. Strobe 1
output is assigned to GPO0 (output channel 0) by default, and Strobe 2 output is assigned to
GPO4 (output channel 4).
Default Digital I/O Definitions
Sherlock Digital I/O Direction Name I/O Connector Pin
output Channel 0 (Strobe 1) out GPO0 7
output Channel 1 out GPO1 20
output Channel 2 out GPO2 8
output Channel 3 out GPO3 21
output Channel 4 (Strobe 2) out GPO4 9
output Channel 5 out GPO5 22
output Channel 6 out GPO6 10
output Channel 7 out GPO7 23
output Channel 8 out LED0 (amber) –
output Channel 9 out LED1 (amber) –
output Channel 10 out LED2 (amber) –
output Channel 11 out LED3 (red) –
output Channel 12 out LED4 (yellow) –
output Channel 13 out LED5 (green) –
input Channel 0 (Trigger 1) in GPI0 2
input Channel 1 in GPI1 15
input Channel 2 in GPI2 3
input Channel 3 in GPI3 16
input Channel 4 (Trigger 2) in GPI4 4
input Channel 5 in GPI5 17
input Channel 6 in GPI6 5
input Channel 7 in GPI7 18