User manual MAXTOR CLC31024A

[. . . ] BD7+ 1 BD7- 2 BD6+ 3 BD6- 4 BD5+ 5 BD5- 6 BD4+ 7 BD4- 8 BD3+ 9 BD3- 10 BD2+ 11 BD2- 12 BD1+ 13 BD1- 14 BD0+ 15 BD0- 16 PULSAR/DIG/MOD (68-pin SCSI-2 connector) Pin name Pin no. DATA15+ 2 DATA15- 36 DATA14+ 3 DATA14- 37 DATA13+ 4 DATA13- 38 DATA12+ 5 DATA12- 39 DATA11+ 6 DATA11- 40 DATA10+ 7 DATA10- 41 DATA9+ 8 DATA9- 42 DATA8+ 9 DATA8- 43 PUL-CID-017 2 Interfacing non-standard cameras to Matrox Pulsar DALSA CL-C3-1024A 29/05/96 Application Note: Cabling Requirements (Continued) · the connections between the DB-25 connector on the rear panel of the camera and the 68pin SCSI-2 connector of the PULSAR/DIG/MOD are as follows: DALSA CL-C3-1024A (DB-25 male connector) Pin name Pin no. MCLK+ 6 MCLK- 19 EXSYNC+ 17 EXSYNC- 4 PRIN+ 5 PRIN- 18 GROUND 7 GROUND 11 GROUND 20 GROUND 24 POWER SUPPLY GROUND POWER SUPPLY GROUND PULSAR/DIG/MOD (68-pin SCSI-2 connector) Pin name Pin no. [. . . ] CTRL_SET1CNT controls the amount of time that is set on the timer for EXPOSURE1 (timer1); the timer starts at this value and counts down to zero. CTRL_T1START is the width of the EXPOSURE1 pulse and also controls the time at which the EXPOSURE1 pulse is sent. PUL-CID-017 4 Interfacing non-standard cameras to Matrox Pulsar DALSA CL-C3-1024A 29/05/96 Application Note: When timer1 reaches the value set for CTRL_T1START, the EXPOSURE1 signal being sent to the camera goes high. The EXPOSURE1 signal should be sent immediately to the camera upon arrival of an external trigger signal to indicate that exposure should begin, therefore CTRL_SET1CNT and CTRL_T1START must be set equal to each other; this is accomplished by setting CTRL_SET1CNTL equal to CTRL_T1STARTL and CTRL_SET1CNTH equal to CTRL_T1STARTH. The Pulsar indicates to the camera that exposure should stop by sending the EXPOSURE2 pulse. For a given setting of CTRL_SET2CNT, which is the time set on the timer for EXPOSURE2 (timer2), the time at which the EXPOSURE2 pulse is sent is controlled by CTRL_T2START, the width of the EXPOSURE2 pulse. Timer2 starts counting down from CTRL_SET2CNT; when it reaches the value set for CTRL_T2START, the EXPOSURE2 signal being sent to the camera goes high. Since both timers start at the same time, the exposure time is then CTRL_SET2CNT - CTRL_T2START. Finally, it should be noted that the EXPOSURE1 pulse must remain high until the LVAL pulse goes low; therefore the time set on timer1 (CTRL_SET1CNT) must be greater than the exposure time, plus the maximum possible delay between the EXPOSURE2 pulse and the LVAL pulse, plus the width of the LVAL pulse (the line transfer time). The maximum possible delay between the EXPOSURE2 pulse and the LVAL pulse is taken to be 8. 9µs (64 pixel times at a clock rate of 7. 159 MHz); the line transfer time is 71. 5µs (512 pixel times, since there are two outputs, at a clock rate of 7. 159 MHz). So to summarize: CTRL_T1START = CTRL_SET1CNT, i. e. , CTRL_T1STARTL = CTRL_SET1CNTL and CTRL_T1STARTH = CTRL_SET1CNTH EXPOSURE TIME = CTRL_SET2CNT - CTRL_T2START CTRL_SET1CNT > exposure time + maximum delay between EXPOSURE2 and LVAL pulses (8. 9µs or 64 pixels) + line transfer time (71. 5µs or 512 pixels) Remember that each 16-bit register is split into a low byte and a high byte. These values must be in pixels and must be set in hexadecimal; the value of each 16-bit register can vary between 0 (0000 in Hex) and 65 535 (FFFF in Hex). The default time set on timer1 as well as the default width of the EXPOSURE1 pulse is 6400 pixels, which in hexadecimal is 1900 (Here the low byte corresponds to 0H and the high byte to 19H). The default time set on timer2 is 6144 pixels (1800H) and the default width of the EXPOSURE2 pulse is 256 pixels (100H). The default exposure time is therefore 6144 - 256 = 5888 pixels, which at a clock rate of 7. 159MHz corresponds to 0. 82ms. [. . . ] Please verify all interface connections with camera documentation or manual. Contact your local sales representative or Matrox Sales office or Matrox Imaging Applications at 514-822-6061 for assistance. Corporate Headquarters: Canada and U. S. A. Dorval, Quebec, Canada H9P 2T4 Tel: (514) 685-7230 Fax: (514) 822-6273 Sales Offices: U. K. [. . . ]