Chapter 2
Module Operation
DAS-429PCI/Mx: User’s Manual
page 2 - 7
Read/Write
The Start/Stop register starts and stops channel operation. The user can start
one or more channels at the same time. Writing a 1 to bit 00 starts channel #0
operation, writing a 1 to the next location starts channel #1, etc. Writing a 0 to
the bit location will stop that channel’s operation. Wait a minimum of 350
µ
sec.
between writes to the Start/Stop register.
Note:
1. A change in a channel’s Configuration register or in the Receiver Data
Storage Mode register is acted upon by the firmware only after the
Start/Stop register contains a 0 for at least 1
µ
sec.
2. When a transmit channel (channels 2 or 5) has completely finished
transmitting all of its data, its start bit is automatically cleared.
2.4.1
Start/Stop Register
Address:
0010 (H)
Bit
Bit Name
06-15
0
05
Channel 5 Start Bit
04
Channel 4 Start Bit
03
Channel 3 Start Bit
02
Channel 2 Start Bit
01
Channel 1 Start Bit
00
Channel 0 Start Bit
Start/Stop Register
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