ADLINK Technology NuDAQ PCI-9812/10, Руководство пользователя

Страница: 28 / 70

20
•
Registers Format
4.7 Post Trigger Counter Register
The post trigger counter is a 16-bit down counter. The counter is
pre-loaded with the value in post trigger counter register and it will
count down on the rising edge of ADC sampling clock after the
trigger condition is met. When the count reaches 0, the counter
stops. The counter is used to control the delay time in delay trigger
mode and to control the post trigger sampling count in middle
trigger mode.
Address: BASE + 14h
Attribute:
write only
Data Format:
Bit 7 6 5 4 3 2 1 0
BASE+Ch PSTCN 7 PSTCN 6 PSTCN 5 PSTCN 4 PSTCN 3 PSTCN 2 PSTCN 1 PSTCN0
BASE+Dh PSTCN15 PSTCN14 PSTCN13 PSTCN12 PSTCN11 PSTCN10 PSTCN9 PSTCN8
BASE+Eh
--- --- --- --- --- --- --- ---
BASE+Fh --- --- --- --- --- --- --- ---
PSTCNT15..0 : This value is pre-loaded to the post trigger counter
when the post trigger counter register is written.
--- : don't card