PCVisionplus
Hardware Reference
Registers
3–35
Rev 02; February 8, 2002
boundary. If the number of active pixels is not divisible by 8, the memory controller will acquire undesired pixels up
to the next 8-pixel boundary.
3.4.5 PWG Vertical (PWGV) R/W
0
7
BADR2 + 0x14
VOFF7
VOFF6
VOFF5
VOFF4
VOFF3
VOFF2
VOFF1
VOFF0
8
15
VACT5
VACT4
VACT3
VACT2
VACT1
VACT0
VOFF9
VOFF8
PCP_PWGV_32
16
23
EXTRIG
EXTRIG
VACT11
VACT10
VACT9
VACT8
VACT7
VACT6
24
31
Reserved
Reserved
Reserved
DIFF
DIFF
OPTO
OPTO
EXTRIG
STAT0_15
STAT1_26
STAT0_26
STAT0
STAT1
STAT0
STAT1
The PWGV register defines the vertical timing for the Programmable Window Generator (PWG).
Bit
Mnemonic
Function
0–9
VOFF
Vertical Offset
10–21
VACT
Vertical Active
22
EXTRIGSTAT0_15
15-pin TTL Trigger 0 Status
23
EXTRIGSTAT1_26
26-pin TTL Trigger 1 Status
24
EXTRIGSTAT0_26
26-pin TTL Trigger 0 Status
25
OPTOSTAT0
Opto-isolator Trigger 0 Status
26
OPTOSTAT1
Opto-isolator Trigger 1 Status
27
DIFFSTAT0
Differential Trigger 0 Status
28
DIFFSTAT1
Differential Trigger 1 Status
29–31
Reserved
“Don’t care”
3.4.5.1 Vertical Offset (VOFF) R/W
VOFF defines the vertical offset period for the Programmable Window Generator (PWG). The 10-bit value deter-
mines the first valid line of each frame relative to the selected edge of the FEN input.
The PWG vertical counter starts counting on the selected edge of FEN and stops counting and loading when the last
line is loaded into the memory (defined by VACT). VOFF is the vertical count from the selected edge of FEN to the
first valid line.
Artisan Technology Group - Quality Instrumentation ... Guaranteed | (888) 88-SOURCE | www.artisantg.com