Transmitter Character Length - NXP Semiconductors freescale KV4 Series Reference Manual

46.5.1 Transmitter
MODULE
BAUDRATE GENERATE
CLOCK
SBR12:0
BRFA4:0
PE
PARITY
GENERATION
PT

46.5.1.1 Transmitter character length

The UART transmitter can accommodate either 8, 9, or 10-bit data characters. The state
of the C1[M] and C1[PE] bits and the C4[M10] bit determine the length of data
characters. When transmitting 9-bit data, bit C3[T8] is the ninth bit (bit 8).
Freescale Semiconductor, Inc.
Chapter 46 Universal Asynchronous Receiver/Transmitter (UART) / FlexSCI
UART DATA REGISTER (UART_D)
VARIABLE 12-BIT TRANSMIT
M10
SHIFT REGISTER
M
TXINV
SHIFT DIRECTION
MSBF
IRQ / DMA
LOGIC
Figure 46-64. Transmitter Block Diagram
KV4x Reference Manual, Rev. 2, 02/2015
Preliminary
INTERNAL BUS
TRANSMITTER CONTROL
TXDIR
SBK
TE
DMA Requests
IRQ Requests
LOOP
CONTROL
RTS_B
R485 CONTROL
CTS_B
TxD Pin Control
Tx port en
Tx output buffer en
Tx input buffer en
DMA Done
TxD
TxD
LOOPS
RSRC
1295