ADLINK Technology AMP-304C, User Manual, Page: 53 / 63

Signal Connections 43
AMP-304C
3.5 Other I/O Interface Signals
3.5.1 Position Latch Input (LTC)
The AMP-304C provides 12-channel position latch trigger inputs.
X LTC: 4-channel dedicated and isolated input, up to 1MHz
X S-LTC: 4-channel isolated and common with DI, up to 10KHz (slower)
X T-LTC: 4-channel TTL and common with TDI, up to 1MHz
With encoder feedback input signals, a position latch function is
available for each axis. Any 12-channel position latch input can be
assigned to a latch source to trigger any axis by software. The
AMP-304C provides 256 position latch buffer points for each axis.
For more information, see the APS Function Library User’s Manual.
CN4 Pin No. Signal Name
8 LTC0
6 LTC1
4 LTC2
2 LTC3
CN2 Pin No. Signal Name CN3 Pin No. Signal Name
24 S-LTC0 1 T-LTC0
25 S-LTC1 2 T-LTC1
26 S-LTC2 3 T-LTC2
27 S-LTC3 4 T-LTC3
NOTE: NOTE:
X
For S-LTC circuit diagram, see Section 3.4.1: 32-Chan-
nel Onboard Isolated GPIO (DI/DO)
.
X
For T-LTC circuit diagram, see Section 3.4.2: 32-Chan-
nel Extended TTL GPIO (TDI/TDO)
.
Connector
FPGA
Schmitt
Trigger
LTC
VDD
D3.3V
330
100pF