HP E1563A, User Manual, Page: 127 / 166

HP E1563A and E1564A Register-Based Programming 127 Appendix B
Sample Period High
Byte Register
This register provides the high byte of the sample period.
Sample Period Low
Word Register
This register provides the low word (2 bytes) of the sample period.
Pre-Trigger Count
High Byte Register
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.
Pre-Trigger Count
Low Word Register
This register holds the low word (2 bytes) for the pre-trigger count.
Sample Count High
Byte Register
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.
base + 30
16
15 14 13 12 11 10 9 8 7 6 5 4 3 2 1 0
Write* x x x x x x x x
Read** 0 0 0 0 0 0 0 0 x x x x x x x x
base + 32
16
15 14 13 12 11 10 9 8 7 6 5 4 3 2 1 0
Write* x x x x x x x x x x x x x x x LSB
Read** x x x x x x x x x x x x x x x LSB
base + 34
16
15 14 13 12 11 10 9 8 7 6 5 4 3 2 1 0
Write undefined C5 C4 C3 C2 C1 C0
Read 0 0 0 0 0 0 0 0 0 0 C5 C4 C3 C2 C1 C0
base + 36
16
15 14 13 12 11 10 9 8 7 6 5 4 3 2 1 0
Write C15 C14 C13 C12 C11 C10 C9 C8 C7 C6 C5 C4 C3 C2 C1 C0
Read C15 C14 C13 C12 C11 C10 C9 C8 C7 C6 C5 C4 C3 C2 C1 C0
base + 38
16
15 14 13 12 11 10 9 8 7 6 5 4 3 2 1 0
Write undefined C5 C4 C3 C2 C1 C0
Read 0 0 0 0 0 0 0 0 0 0 C5 C4 C3 C2 C1 C0