Princeton Digital (USA) 4411-0062 User Manual

Page of 116
88 I-PentaMAX System Manual 
Version 3.A 
 
Read back of Serial NVRAM System ID information:  This EEPROM must be 
programmed by production test/system test using the “NVRAM Windows 
Application,” provided by the software department. This EEPROM will hold a 
variety of information about the camera system which will allow the hardware 
version of the camera to be detected by software (for the autoconfiguration of 
some parameters) and customer and test information to be stored with the 
hardware.  
Ability to shut down the RS170 oscillator for noise critical applications:  
Because the video oscillator runs at an independent frequency from the rest of 
the system, it can be a source of asynchronous noise in the image data. If PI 
software is running a PentaMAX as a “Version 5,” it will now shut down this 
oscillator if RS170 is not selected by the user. 
Video buffer blanking has been made disjoint from the resetting of the 
camera:  In previous versions of the camera, the video was blanked any time 
the camera was reset, which occurred between every frame when the camera was 
operated asynchronously (causing the video image to “blink”). Now the video is 
only blanked on power up unless explicitly blanked by the host software. 
Camera can now hold more than one scan pattern at a time:  This allows the 
implementation of video focus mode features that allow quick panning of the 
video around large image areas. It also allows the CCD to be cleaned using a 
different pattern than is used for scanning (which is important for continuous 
clean mode, described below). Note that the current release of PI software may 
not yet take advantage of these features. 
Maximum possible shutter compensation time:  Has been increased from 30ms 
to 62ms. 
Continuous clean mode has been implemented:  To use this feature the ADC 
(175x-0219) and preamp (175x-0224, Kodak only) EPLD programs need to be 
upgraded so that the interpretation of a newly implemented CLEAN instruction 
is done properly. DCN #2592 performs these program upgrades. These EPLD 
programs revisions are backward compatible with Version 4 scan control and 
serial comm/power hardware. 
Software selection of back-panel BNC logic output: Choices are Not Scan 
(default), Cleaning, Logic 0, Logic 1, Not FT Image Shift, Not Ready, Shutter.   
Ability to mask the End of Frame interrupt returned by the camera: Together 
with the addition of a generic Scan Control interrupt, which can be placed 
anywhere during the CCD scan cycle.  These two features are particularly 
important to users who would like to interrupt their software at the beginning of 
a CCD frame instead of the end of the cycle. 
Video look-up bank selection and 2X video zoom mode implemented:  These 
features will allow quick change in the selection of the video look-up table and 
allow smaller CCDs images (particularly the EEV 576FT) to fill the entire 
RS170 monitor and run at higher frame rates to the video monitor (EEV576FT 
can run nearly 40fps to the RS170 monitor when 2X zoomed).  Note that the 
current release of PI software may not yet take advantage of these features.