ROHS MC9S08QE128 Reference Manual page 249

Write: SCIxBDH:SCIxBDL
Write: SCIxC1
Write; SCIxC2
Write: SCIxC3
Wait for TDRE, then write data to SCIxD
Wait for RDRF, then read data from SCIxD
A small number of applications will use RWU to manage automatic receiver wakeup, SBK to send break characters, and
R8 and T8 for 9-bit data.
LBKDIE
SCIxBDH
SCIxBDL SBR7
Baud rate = BUSCLK / (16 x SBR12:SBR0)
LOOPS
SCIxC1
Module configuration
TIE
SCIxC2
Local interrupt enables Tx and Rx enable
TDRE
SCIxS1
Interrupt flags
LBKDIF
SCIxS2
Configure LIN support options and monitor receiver activity
R8
SCIxS3
9th data bits
R7/T7
SCIxD
Read: Rx data; write: Tx data
Freescale Semiconductor
Module Initialization:
to set
to configure
to configure
to enable
Module Use:
RXEDGIE SBR12
SBR6 SBR5 SBR4
SCISWAI RSRC
TCIE RIE ILIE
TC RDRF IDLE
RXEDGIF RXINV
T8 TXDIR
TXINV
Rx/Tx pin
Tx data path
direction in polarity
single-wire
mode
R6/T6 R5/T5 R4/T4
Figure 14-2. SCI Module Quick Start
MC9S08QE128 MCU Series Reference Manual, Rev. 2
Chapter 14 Serial Communications Interface (S08SCIV4)
baud rate
1-wire/2-wire, 9/8-bit data, wakeup, and parity, if used.
interrupts, enable Rx and Tx, RWU
Enable Rx wakeup, SBK sends break character
Rx error interrupt sources. Also controls pin direction in
1-wire modes. R8 and T8 only used in 9-bit data modes.
SBR11 SBR10
SBR3 SBR2
M WAKE ILT
TE RE
OR NF
Rx error flags
RWUID BRK13
ORIE NEIE
Local interrupt enables
R3/T3 R2/T2
SBR9 SBR8
SBR1 SBR0
PE PT
RWU SBK
Rx wakeup and send break
FE PF
LBKDE RAF
FEIE PEIE
R1/T1 R0/T0
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