33
Reg. 30
LVDS Trigger 0 Control
Byte
31
30
Reg. 32
LVDS Trigger 1 Control
Byte
33
32
Reg. 34
LVDS Trigger 2 Control
Byte
35
34
Reg. 36
LVDS Trigger 3 Control
Byte
37
36
Reg. 38
LVDS Trigger 4 Control
Byte
39
38
Reg. 3A
LVDS Trigger 5 Control
Byte
3B
3A
Reg. 3C
LVDS Trigger 6 Control
Byte
3D
3C
Reg. 3E
LVDS Trigger 7 Control
Byte
3F
3E
Bit
15
14
13
12
11
10
9
8
7
6
5
4
3
2
1
0
Write
LTENx
-
-
-
LTPx
LTRFx LTELx
LTDx
-
LTSTx
-
LTSNx
Read
LTENx
0
0
0
LTPx
LTRFx LTELx
LTDx
0
LTSTx
0
LTSNx
LTENx
Enabled (1 = enabled)
LTPx
Polarity (0 = normal, 1 = invert)
LTRFx
Rising/Falling Edge (0 = rising, 1 = falling) (only used when Edge Triggering)
LTELx
Edge/Level Sensitive (0 = edge, 1 = level) (only used when direction = input)
LTDx
Direction (0 = input or unused, 1 = output)
1
LTSTx
Signal Source Type (only used when direction = output)
2
0 0 0
External TTL Trigger
0 0 1
External LVDS Trigger
0 1 0
M-Module Trigger A
0 1 1
M-Module Trigger B
1 0 0
reserved
1 0 1
reserved
1 1 0
reserved
1 1 1
reserved
LTSNx
Signal Source Number (direction = output) or EDGECLK Number (direction = input)
3
Notes:
1.
The direction is with respect to the internal trigger logic. For LVDS triggers, setting the direction to
output means that the LVDS trigger is driven by the carrier.
2.
The specified signal source must be configured as an input for proper operation.
3.
When direction = output, this field specifies number of the signal source. When direction = input,
this field specifies the EDGECLK number (0-3). Not used for External TTL Trigger signal sources.
Figure 11. EM405-8 Registers (continued)
C&H Technologies, Inc. <> 445 Round Rock West Drive <> Round Rock, Texas 78681 <> www.chtech.com