Advantech PCI-1710 - Manual (Page 58)

54 PCI-1750 User's Manual
RW1 & RW0 Select read/write operation
Operation RW1 RW0
Counter latch 0 0
Read/write LSB 0 1
Read/write MSB 1 0
Read/write LSB first, 1 1
then MSB
M2, M1 & M0 Select operating mode
M2 M1 M0 Mode Description
0 0 0 0 Stop on terminal count
0 0 1 1 Programmable one shot
X 1 0 2 Rate generator
X 1 1 3 Square wave rate generator
1 0 0 4 Software triggered strobe
1 0 1 5 Hardware triggered strobe
BCD Select binary or BCD counting.
BCD Type
0 Binary counting 16-bits
1 Binary coded decimal (BCD) counting
If you set the module for binary counting, the count can be any
number from 0 up to 65535. If you set it for BCD (Binary Coded
Decimal) counting, the count can be any number from 0 to 9999.
If you set both SC1 and SC0 bits to 1, the counter control register is in
read-back command mode. The control register data format then