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CBM-230/231 User’s Manual
24
CITIZEN
(2) Parity error
When a parity check has been specified and an error is detected at parity check time, that data is stored in the
buffer as "?."
(3) Overrun error
When an overrun error is detected, that data is stored in the buffer as "?."
7.3.4 Data Receiving Control
When DTR/DSR control has been selected, if the DTR signal is at SPACE, the data from the host side can be
received, but when at MARK, it cannot be received. When DTR/DSR control has not been selected, the data
from the host side can be received after transmitting XON, but it cannot be received after transmitting XOFF.
7.3.5 Buffering
There are DTR and TD signals as control signals for data transfer to the input buffer.
(1) DTR signal (Refer to 7.3 1)
(2) TD signal (Refer to 7.3 1)