Enhanced Serial Communication Interface (eSCI)
PXN20 Microcontroller Reference Manual, Rev. 1
31-22 Freescale Semiconductor
31.4.2.1.1 Inverted Data Frame Formats
The structures of the supported data frame formats in inverted polarity are shown in Figure 31-19. These
frame types are supported for reception only. The polarity of the RXD pin is controlled by the RXPOL bit
in the eSCI_ Control Register 2 (eSCI_CR2).
Figure 31-19. Inverted SCI Frame Formats
31.4.2.2 Break Character Formats
The supported break character formats are specified in Table 31-17.
The structure and content of the LIN break symbols is shown in Figure 31-20.
Figure 31-20. LIN Break Symbol Format
The structure and content of the SCI break characters is shown in Figure 31-21.
Table 31-17. Supported Break Character Formats
Control
1
1
All codings not listed are reserved and must not be used.
Break Character Content
eSCI_CR3 eSCI_CR1 eSCI_CR2
Start
Bit
Character Bits
Delimit
Bits
M2 M BRCL
LIN Break Symbol (see Figure 31-20)
000 1 9 1
0011121
SCI Break Character (see Figure 31-21)
000 1 9 0
0011120
0101100
0111130
START
BIT
STOP
BIT
START
BIT
STOP
BIT
STOP
BIT
BIT0
START
BIT
Break
Delimit
BIT1 BIT2 BIT3 BIT4 BIT5 BIT6 BIT7
BIT8
BIT0
START
BIT
Break
Delimit
BIT1 BIT2 BIT3 BIT4 BIT5 BIT6 BIT7
BIT8 BIT9 BIT10 BIT11
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