Intel PXA26X User Manual
Page 409
Intel® PXA26x Processor Family Developer’s Manual
11-15
Fast Infrared Communication Port
.
Table 11-7. Fast Infrared Communication Port Status Register 1
0x4080 0018
Fast Infrared Communication Port
Status Register 1 (ICSR1)
FICP
Bit
31 30 29 28 27 26 25 24 23 22 21 20 19 18 17 16 15 14 13 12 11 10 9
8
7
6
5
4
3
2
1
0
R
eser
ved
RO
R
CR
E
EO
F
TN
F
RN
E
TB
Y
RS
Y
Reset
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
1
0
0
0
Bits
Name
Description
[31:7]
—
Reserved
6
ROR
RECEIVE FIFO OVERRUN (read-only):
0 – Receive FIFO has not experienced an overrun.
1 – Receive logic attempted to place data into receive FIFO while it was full. Data
received after the FIFO is full are lost.
Each time an 11-bit value reaches the bottom of the receive FIFO, bit 10 from the last FIFO
entry is transferred to the ROR bit.
5
CRE
CRC ERROR (read-only):
0 – CRC not encountered yet or no CRC check errors encountered in the receipt of data.
1 – CRC calculated on the incoming data. Does not match CRC value contained within
the received frame.
Each time an 11-bit value reaches the bottom of the receive FIFO, bit 9 from the last FIFO
entry is transferred to the CRE bit.
4
EOF
END OF FRAME (read-only):
0 – Current frame has not completed.
1 – The value at the bottom of the receive FIFO is the last byte of data within the frame,
including aborted frames.
Each time an 11-bit value reaches the bottom of the receive FIFO, bit 8 from the last FIFO
entry is transferred to the EOF bit.
3
TNF
TRANSMIT FIFO NOT FULL (read-only):
0 – Transmit FIFO is full.
1 – Transmit FIFO is not full (no interrupt generated).
2
RNE
RECEIVE FIFO NOT EMPTY (read-only):
0 – Receive FIFO is empty.
1 – Receive FIFO is not empty (no interrupt generated).
1
TBY
TRANSMITTER BUSY FLAG (read-only):
0 – Transmitter is idle (continuous preambles) or disabled.
1 – Transmit logic is currently transmitting a frame (address, control, data, CRC, or start/
stop flag). No interrupt generated.
0
RSY
RECEIVER SYNCHRONIZED FLAG (read-only):
0 – Receiver is in hunt mode or is disabled.
1 – Receiver logic is synchronized with the incoming data (no interrupt generated).