Serial Communication Interface (S12SCIV5)
11.3.2.6 SCI Control Register 2 (SCICR2)
Module Base + 0x0003
7
6
5
4
3
2
1
0
R
W
TIE
TCIE
RIE
ILIE
TE
RE
RWU
SBK
Reset
0
0
0
0
0
0
0
0
Figure 11-9. SCI Control Register 2 (SCICR2)
Read: Anytime
Write: Anytime
Table 11-10. SCICR2 Field Descriptions
Description
Field
7
Transmitter Interrupt Enable Bit — TIE enables the transmit data register empty flag, TDRE, to generate
TIE
interrupt requests.
0 TDRE interrupt requests disabled
1 TDRE interrupt requests enabled
6
Transmission Complete Interrupt Enable Bit — TCIE enables the transmission complete flag, TC, to generate
TCIE
interrupt requests.
0 TC interrupt requests disabled
1 TC interrupt requests enabled
5
RIE
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
4
ILIE
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
3
Transmitter Enable Bit — TE enables the SCI transmitter and configures the TXD pin as being controlled by
TE
the SCI. The TE bit can be used to queue an idle preamble.
0 Transmitter disabled
1 Transmitter enabled
2
RE
Receiver Enable Bit — RE enables the SCI receiver.
0 Receiver disabled
1 Receiver enabled
1
Receiver Wakeup Bit — Standby state
RWU
0 Normal operation.
1 RWU enables the wakeup function and inhibits further receiver interrupt requests. Normally, hardware wakes
the receiver by automatically clearing RWU.
0
Send Break Bit — Toggling SBK sends one break character (10 or 11 logic 0s, respectively 13 or 14 logics 0s
SBK
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
S12P-Family Reference Manual, Rev. 1.13
372
Freescale Semiconductor
FREESCALE [ Freescale ]
