CM68HC05C4ACFB Motorola / Freescale Semiconductor, CM68HC05C4ACFB Datasheet - Page 74

• Manufacturer Part Number: CM68HC05C4ACFB
• Description: Microcontroller
• Manufacturer: Motorola / Freescale Semiconductor

Serial Communications Interface (SCI)
9.6.3 SCI Control Register 2
General Release Specification
74
SCI control register 2 has these functions:
TIE — Transmit Interrupt Enable
TCIE — Transmission Complete Interrupt Enable
RIE — Receive Interrupt Enable
Address:
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•
•
•
•
•
This read/write bit enables SCI interrupt requests when the TDRE bit
becomes set. Reset clears the TIE bit.
This read/write bit enables SCI interrupt requests when the TC bit
becomes set. Reset clears the TCIE bit
This read/write bit enables SCI interrupt requests when the RDRF bit
or the OR bit becomes set. Reset clears the RIE bit.
Reset:
Read:
Write:
1 = TDRE interrupt requests enabled
0 = TDRE interrupt requests disabled
1 = TC interrupt requests enabled
0 = TC interrupt requests disabled
1 = RDRF interrupt requests enabled
0 = RDRF interrupt requests disabled
Enables the SCI receiver and SCI receiver interrupts
Enables the SCI transmitter and SCI transmitter interrupts
Enables SCI receiver idle interrupts
Enables SCI transmission complete interrupts
Enables SCI wakeup
Transmits SCI break characters
Serial Communications Interface (SCI)
$000F
Bit 7
TIE
Figure 9-6. SCI Control Register 2 (SCCR2)
TCIE
6
RIE
5
Unaffected by Reset
ILIE
4
TE
3
MC68HC05C4A
RE
2
RWU
1
MOTOROLA
—
Rev. 4.0
Bit 0
SBK