Information

UARTx_S4 field descriptions (continued)
Field Description
Indicates when the collision occurs during transmission. This flag is cleared by writing 2'b11. If the collision
flag is not cleared by software and a valid collision pulse is detected during some other phase of
transmission, then collision flag continues to indicate the previous value.
00 No collision.
01 Collision occurred during preamble.
10 Collision occurred during data.
11 Collision occurred during line code violation.
1
ILCV
Improper Line Code Violation
Indicates that line code violation received is not proper. This flag is cleared by writing 1.
0 Line code violation received is proper.
1 Line code violation received is improper, that is, less than three bit periods.
0
FE
Framing Error
Indicates that the received CEA709.1-B packet has finished at byte boundary. This flag is cleared by
writing 1.
0 Received packet is byte bound.
1 Received packet is not byte bound.
48.3.44 UART CEA709.1-B Received Packet Length (UARTx_RPL)
Address: Base address + 2Dh offset
Bit 7 6 5 4 3 2 1 0
Read RPL
Write
Reset
0 0 0 0 0 0 0 0
UARTx_RPL field descriptions
Field Description
7–0
RPL
Received Packet Length
Indicates the length of received packet in bytes. If the received packet is not byte aligned, the partial byte
received is appended by zeros.
Memory map and registers
K20 Sub-Family Reference Manual, Rev. 1.1, Dec 2012
1318
Preliminary
Freescale Semiconductor, Inc.
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