AP513 ACROPACK
USER
’S MANUAL
Acromag, Inc. Tel: 248-295-0310
- 43 -
http://www.acromag.com
- 43 -
www.acromag.com
1 = Xon/xoff software flow control characters will
be transmitted even though the transmitter is
disabled.
2
Receiver
Disable
0 = Enable Receiver (default).
1 = Disable Receiver
This bit can be used to disable the receiver by
halting the RSR. When this bit is set to a logic 1,
the receiver will operate in one of the following
ways:
•
If a character is being received at the
time of setting this bit, that character will
be correctly received. No more
characters will be received.
•
If the receiver is idle at the time of
setting this bit, no more characters will
be received.
The receiver can be enabled and will start
receiving characters by resetting this bit to a logic
0. The receiver will operate in one of the
following ways:
•
If the receiver is idle (RX pin is HIGH) at
the time of setting this bit, the next
character will be received normally. It is
recommended that the receiver be idle
when resetting this bit to a logic 0.
•
If the receiver is not idle (RX pin is
toggling) at the time of setting this bit,
the RX FIFO will be filled with unknown
data.
Any data that is in the RX FIFO can be read out at
any time whether the receiver is disabled or not.
3
Transmitter
Disable
0 = Enable Transmitter (default).
1 = Disable Transmitter
This bit can be used to disable the transmitter by
halting the TSR. When this bit is set to a logic 1,
the bytes already in the FIFO will not be sent out.
Also, any more data loaded into the FIFO will stay
in the FIFO and will not be sent out. When this
bit is set to a logic 0, the bytes currently in the TX
