HP E1563A User Manual page 127

Sample Period High
Byte Register
base + 30 15 14
16
Write*
Read** 0 0
Sample Period Low
Word Register
base + 32 15 14
16
Write* x x
Read** x x
Pre-Trigger Count
High Byte Register
base + 34 15 14
16
Write
Read 0 0
Pre-Trigger Count
Low Word Register
base + 36 15 14
16
Write C15 C14
Read C15 C14
Sample Count High
Byte Register
base + 38 15 14
16
Write
Read 0 0
Appendix B
This register provides the high byte of the sample period.
13 12 11 10
0 0 0 0
This register provides the low word (2 bytes) of the sample period.
13 12 11 10
x x x x
x x x x
Pre-trigger count is the number of readings stored before the trigger is
received. The minimum value is 0. The maximum number of readings is
the size of memory in bytes divided by 8 for the E1563 and divided by 4 for
the E1564.
13 12 11 10
undefined
0 0 0 0
This register holds the low word (2 bytes) for the pre-trigger count.
13 12 11 10
C13 C12 C11 C10
C13 C12 C11 C10
Sample count is the total number of readings to be taken including the pre-
trigger readings. The minimum value is 1. Zero (0) causes continuous
readings and will not stop the acquisition until all of memory is full. The
module will not stop acquiring data if the host can remove readings fast
enough. The maximum number of readings is the size of memory in bytes
divided by 8 for the E1563 and divided by 4 for the E1564.
13 12 11 10
undefined
0 0 0 0
9 8 7
x
0 0 x
9 8 7
x x x
x x x
9 8 7
0 0 0
9 8 7
C9 C8 C7
C9 C8 C7
9 8 7
0 0 0
HP E1563A and E1564A Register-Based Programming 127
6 5 4 3
x x x x
x x x x
6 5 4 3
x x x x
x x x x
6 5 4 3
C5 C4 C3
0 C5 C4 C3
6 5 4 3
C6 C5 C4 C3
C6 C5 C4 C3
6 5 4 3
C5 C4 C3
0 C5 C4 C3
2 1 0
x x x
x x x
2 1 0
x x LSB
x x LSB
2 1 0
C2 C1 C0
C2 C1 C0
2 1 0
C2 C1 C0
C2 C1 C0
2 1 0
C2 C1 C0
C2 C1 C0