Freescale Semiconductor MPC5200B - Manual (Page 520)

PSC Registers—MBAR + 0x2000, 0x2200, 0x2400, 0x2600, 0x2800, 0x2C00
MPC5200B Users Guide, Rev. 1
Freescale Semiconductor 15-9
Table 15-12. Status Register (0x04) for MIR / FIR Mode
msb 0 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 lsb
R EOF
PH
Y
E
R
R
Reser
v
e
d
ORE
R
R
UR
E
R
R
Tx
RD
Y
FFU
LL
RxRD
Y
DEOF
Error Reserved
W
RESET: 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0
Table 15-13. Status Register (0x04) for other Modes
msb 0 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 lsb
R Reserved
ORERR URERR Tx
R
D
Y
FF
U
L
L
RxRD
Y
Re
s
e
rv
e
d
Error Reserved
CMD_SEND
DA
T
A
_
O
V
R
DA
T
A
_
V
A
L
ID
UNEX_R
X
_
SLO
T
W
RESET: 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0
Bit Name Description
0 RB/
EOF
UART / SIR —Received Break—detects breaks originating in middle of received character. Such
a break must persist until the end of next detected character time.
0 = No break received.
1 = An all-0 character of the programmed length was received without a stop bit. RB is valid
only when RxRDY = 1. Only a single FIFO position is occupied when a break is received.
Further entries to FIFO are inhibited until RxD returns to high state for at least one-half
bit-time, which equals two successive PSC
clock edges.
MIR / FIR—End of frame
0 = The next byte to be read from the RX-FIFO is not the last one of the frame.
1= The next byte to be read from the RX-FIFO is the last one of the frame. This bit is
effective when RxRDY=1.
other Modes—Reserved
1 FE/
PHYERR
UART / SIR—Framing Error— is not used (always 0) in Codec mode.
0 = No framing error occurred.
1 = No stop bit detected when corresponding FIFO data character received. Stop bit-check
occurs in middle of first stop bit position. FE is valid only when RxRDY=1.
MIR / FIR—Physical layer error
0 = No error
1 = In MIR mode, this denotes that the RX received an abort. In FIR mode, this denotes that
there was a decode error. This bit can be cleared by the reset error status command in the
CR.
other Modes—Reserved
2 PE UART / SIR—Parity Error—valid only if RxRDY = 1. PE is not used (always 0) in Codec mode.
0 = No parity error occurred.
1 = If MR1 [PM]=0x (with parity or force parity), corresponding FIFO character was received
with incorrect parity. If MR1 [PM]=11 (multidrop), PE stores received A/D bit.\
other Modes—Reserved