Copyright © Siemens AG 2016. All rights reserved
311
ERTEC 200P-2 Manual
Technical data subject to change
Version 1.0
11
Overrun_Error
0h
rh
Overrun error. This bit is set to 1 if
data is received and the receive FIFO
is already full.
This is cleared to 0 once there is an
empty space in the FIFO and a new
character can be written to it.
31dt12 <unused>
00000h r
Register:
UARTRSR_UARTECR
Address:
4h
Bits:
31dt0
Reset value:
0h
Attributes:
r(h)
Description:
receive status register/ error clear register
A write to this Register clears the framming, parity, break and over-
run error. The data value is not important.
Bit
Identifier
Reset
Attr.
Function / Description
0
Framing_Error
0h
rh
When this bit is set to 1, it indicates
that the received character did not
have a valid stop bit (a valid stop bit is
1).
1
Parity_Error
0h
rh
When this bit is set to 1, it indicates
that the parity of the received data
character does not match the parity
selected in UARTLCR:H (bit 2).
2
Break_Error
0h
rh
This bit is set to 1 if a break condition
was detected, indicating that the re-
ceived data input was held LOW for
longer than a full-word transmission
time (defined as start, data, parity and
stop bits).
3
Overrun_Error
0h
rh
This bit is set to 1 if data is received
and the FIFO is already full.
This bit is cleared to 0 by a write to
UARTECR
31dt4 <unused>
0000000h r
Reserved, unpredictable when read.
Register:
UARTFR
Address:
18h
Bits:
31dt0
Reset value:
90h
Attributes:
r(h)
Description:
flag register; after reset TXFF, RXFF and BUSY are 0, TXFE and
RXFE are 1.
Bit
Identifier
Reset
Attr.
Function / Description
0
Clear_To_Send
0h
rh
(CTS) This bit is the complement of
the PrimeCell UART clear to send
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