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4 6
PCM-3718H/3718HG 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, then MSB
1
1
M2, M1 & M0 Select operating mode
M2
M1
M0
Mode
Description
0
0
0
0
programmable one shot
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
becomes:
BASE+15 - 8254 control, read-back mode
Bit
D7
D6
D5
D4
D3
D2
D1
D0
Value 1
1
CNT
STA
C2
C1
C0
X
Summary of Contents for 3718HG
Page 1: ...PCM 3718H 3718HG PC 104 12 bit DAS Module with Programmable Gain User s manual ...
Page 2: ......
Page 5: ...1 General Information CHAPT ER ...
Page 13: ...2 Installation CHAPT ER ...
Page 21: ...3 Signal Connections CHAPT ER ...
Page 26: ...22 PCM 3718H 3718HG User s Manual ...
Page 27: ...4 Register Structure and Format CHAPT ER ...
Page 38: ...34 PCM 3718H 3718HG User s Manual ...
Page 39: ...5 A D Conversion CHAPT ER ...
Page 45: ...6 Digital Input Output CHAPT ER ...
Page 47: ...7 Programmable Pacer CHAPT ER ...
Page 57: ...8 Direct Memory Access Operation CHAPT ER ...
Page 60: ...56 PCM 3718H 3718HG User s Manual ...
Page 61: ...9 Calibration CHAPT ER ...
Page 64: ...60 PCM 3718H 3718HG User s Manual ...