mc9s12xd256 Freescale Semiconductor, Inc, mc9s12xd256 Datasheet - Page 488

• Manufacturer Part Number: mc9s12xd256
• Description: Hcs12x Microcontrollers
• Manufacturer: Freescale Semiconductor, Inc

Chapter 11 Serial Communication Interface (S12SCIV5)
11.3.2.6
Read: Anytime
Write: Anytime
488
Reset
Field
RWU
TCIE
SBK
ILIE
TIE
RIE
RE
TE
7
6
5
4
3
2
1
0
W
R
Transmitter Interrupt Enable Bit — TIE enables the transmit data register empty flag, TDRE, to generate
interrupt requests.
0 TDRE interrupt requests disabled
1 TDRE interrupt requests enabled
Transmission Complete Interrupt Enable Bit — TCIE enables the transmission complete flag, TC, to generate
interrupt requests.
0 TC interrupt requests disabled
1 TC interrupt requests enabled
Receiver Full Interrupt Enable Bit — RIE enables the receive data register full flag, RDRF, or the overrun flag,
OR, to generate interrupt requests.
0 RDRF and OR interrupt requests disabled
1 RDRF and OR interrupt requests enabled
Idle Line Interrupt Enable Bit — ILIE enables the idle line flag, IDLE, to generate interrupt requests.
0 IDLE interrupt requests disabled
1 IDLE interrupt requests enabled
Transmitter Enable Bit — TE enables the SCI transmitter and configures the TXD pin as being controlled by
the SCI. The TE bit can be used to queue an idle preamble.
0 Transmitter disabled
1 Transmitter enabled
Receiver Enable Bit — RE enables the SCI receiver.
0 Receiver disabled
1 Receiver enabled
Receiver Wakeup Bit — Standby state
0 Normal operation.
1 RWU enables the wakeup function and inhibits further receiver interrupt requests. Normally, hardware wakes
Send Break Bit — Toggling SBK sends one break character (10 or 11 logic 0s, respectively 13 or 14 logics 0s
if BRK13 is set). Toggling implies clearing the SBK bit before the break character has finished transmitting. As
long as SBK is set, the transmitter continues to send complete break characters (10 or 11 bits, respectively 13
or 14 bits).
0 No break characters
1 Transmit break characters
TIE
SCI Control Register 2 (SCICR2)
0
7
the receiver by automatically clearing RWU.
TCIE
0
6
Figure 11-9. SCI Control Register 2 (SCICR2)
Table 11-9. SCICR2 Field Descriptions
MC9S12XDP512 Data Sheet, Rev. 2.17
RIE
0
5
ILIE
0
4
Description
TE
0
3
RE
0
2
Freescale Semiconductor
RWU
0
1
SBK
0
0