AD9927 Analog Devices, AD9927 Datasheet - Page 62

• Manufacturer Part Number: AD9927
• Description: 14-Bit CCD Signal Processor
• Manufacturer: Analog Devices

AD9927
RapidShot Sequences
RapidShot technology provides continuous repetition of
scheduled toggles.
Preparation
The GP toggle positions can be programmed any time prior to
use. For example,
0x71
0x7A
0x7B
0x7C
0x7D
0x7E
0x7F
0x73
Details
A) Field 0:
B) Field 2:
REGISTER WRITE
GP1_PROTOCOL 0
SECONDARY
Figure 74. RapidShot Toggle Operation Using GP_PROTOCOL = 6
COUNT
GPO1
VD
NOTES
1. THE GP PROTOCOLS ARE THE SAME AS THE SCHEDULED
CAUTION! THE FIELD COUNTER MUST BE FORCED INTO IDLE
STATE TO TERMINATE REPETITIONS.
0x0004000
0x000A001
0x0002000
0x000000F
0x00C4002
0x0004000
0x00000B3
0x0000006
TOGGLES, EXCEPT THE TOGGLES CAN BE EXCLUDED FROM
REPETITION BY CHOOSING GP PROTOCOL 2 OR 3.
0 (IDLE)
0x70
0x70
A
1
6
1
2
0x0000010
0x0000007
2
1
3
2
4
TERMINATED
AT VD EDGE
1
5
B
0
Rev. 0 | Page 62 of 100
ShotDelay Sequences
ShotDelay technology provides internal delay of scheduled
toggles. The delay is in terms of fields.
Preparation
The GP toggle positions can be programmed any time prior to
use. For example,
0x71
0x72
0x7A
0x7B
0x7C
0x73
Details
A) Field 0:
REGISTER WRITE
GP1_PROTOCOL 0
SECONDARY
Figure 75. ShotDelay Toggle Operation Using GP_PROTOCOL = 3
COUNT
GPO1
VD
0x0004000
0x000C000
0x000A001
0x0002000
0x000000F
0x0000003
0 (IDLE)
0x70
A
3
1
2
0x0000018
3
1
1
2
2
0