Table of Contents
Advertisement
13.2.7 Serial Status Register (SSR)
www.DataSheet4U.com
SSR is an 8-bit register containing multiprocessor bit values, and status flags that indicate SCI
operating status.
Bit
TDRE
Initial value
Read/Write
R/(W)
Transmit data register empty
Status flag indicating that transmit data has been transferred from TDR into
TSR and new data can be written in TDR
Note:
*
Only 0 can be written, to clear the flag.
7
6
5
RDRF
ORER
1
0
0
*
R/(W)
*
R/(W)
*
Overrun error
Status flag indicating detection of a receive overrun error
Receive data register full
Status flag indicating that data has been received and stored in RDR
4
3
FER
PER
TEND
0
0
R/(W)
*
R/(W)
*
Transmit end
Status flag indicating end of
transmission
Parity error
Status flag indicating detection of
a receive parity error
Framing error
Status flag indicating detection of a receive
framing error
451
2
1
0
MPB
MPBT
1
0
0
R
R
R/W
Multiprocessor
bit transfer
Value of multi-
processor bit to
be transmitted
Multiprocessor bit
Stores the received
multiprocessor bit value
Advertisement
Table of Contents
