MC9S12E32CFU FREESCALE [Freescale Semiconductor, Inc], MC9S12E32CFU Datasheet - Page 256

• Manufacturer Part Number: MC9S12E32CFU
• Description: HCS12 Microcontrollers
• Manufacturer: FREESCALE [Freescale Semiconductor, Inc]

Chapter 8 Serial Communication Interface (SCIV3)
8.3.2.5
Read: anytime
Write: anytime
256
BRK13
Reset
TXDIR
Field
RAF
2
1
0
W
R
Break Transmit Character Length — This bit determines whether the transmit break character is 10 or 11 bit
respectively 13 or 14 bits long. The detection of a framing error is not affected by this bit.
0 Break character is 10 or 11 bit long
1 Break character is 13 or 14 bit long
Transmitter Pin Data Direction in Single-Wire Mode — This bit determines whether the TXD pin is going to
be used as an input or output, in the single-wire mode of operation. This bit is only relevant in the single-wire
mode of operation.
0 TXD pin to be used as an input in single-wire mode
1 TXD pin to be used as an output in single-wire mode
Receiver Active Flag — RAF is set when the receiver detects a logic 0 during the RT1 time period of the start
bit search. RAF is cleared when the receiver detects an idle character.
0 No reception in progress
1 Reception in progress
SCI Status Register 2 (SCISR2)
0
0
7
= Unimplemented or Reserved
0
0
6
Figure 8-8. SCI Status Register 2 (SCISR2)
Table 8-8. SCISR2 Field Descriptions
MC9S12E128 Data Sheet, Rev. 1.07
0
0
5
0
0
4
Description
0
0
3
BRK13
0
2
Freescale Semiconductor
TXDIR
0
1
RAF
0
0