32
Reg. 20
M-Module 0 Trigger B Control
Byte
21
20
Reg. 22
M-Module 1 Trigger B Control
Byte
23
22
Reg. 24
M-Module 2 Trigger B Control
Byte
25
24
Reg. 26
M-Module 3 Trigger B Control
Byte
27
26
Reg. 28
M-Module 4 Trigger B Control
Byte
29
28
Reg. 2A
M-Module 5 Trigger B Control
Byte
2B
2A
Reg. 2C
M-Module 6 Trigger B Control
Byte
2D
2C
Reg. 2E
M-Module 7 Trigger B Control
Byte
2F
2E
Bit
15
14
13
12
11
10
9
8
7
6
5
4
3
2
1
0
Write
TBENx
-
-
-
TBPx
TBRFx TBELx
TBDx
-
TBSTx
-
TBSNx
Read
TBENx
0
0
0
TBPx
TBRFx TBELx
TBDx
0
TBSTx
0
TBSNx
TBENx
Enabled (1 = enabled)
TBPx
Polarity (0 = normal, 1 = invert)
TBRFx
Rising/Falling Edge (0 = rising, 1 = falling) (only used when Edge Triggering)
TBELx
Edge/Level Sensitive (0 = edge, 1 = level) (only used when direction = input)
TBDx
Direction (0 = input or unused, 1 = output)
1
TBSTx
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
TBSNx
Signal Source Number (direction = output) or EDGECLK Number (direction = input)
3
Notes:
1.
The direction is with respect to the internal trigger logic. For M-Modules, setting the direction to
input, means the M-Module is expected to drive the trigger. The M-Module’s internal trigger
control logic must be set to output the trigger.
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