MC68HC908AB32 MOTOROLA [Motorola, Inc], MC68HC908AB32 Datasheet - Page 269

• Manufacturer Part Number: MC68HC908AB32
• Description: HCMOS Microcontroller Unit
• Manufacturer: MOTOROLA [Motorola, Inc]

15.9.4 SCI Status Register 1
MC68HC908AB32
MOTOROLA
—
Rev. 1.0
Address:
SCI status register 1 (SCS1) contains flags to signal these conditions:
SCTE — SCI Transmitter Empty Bit
Reset:
Read:
Write:
•
•
•
•
•
•
•
•
This clearable, read-only bit is set when the SCDR transfers a
character to the transmit shift register. SCTE can generate an SCI
transmitter CPU interrupt request. When the SCTIE bit in SCC2 is set,
SCTE generates an SCI transmitter CPU interrupt request. In normal
operation, clear the SCTE bit by reading SCS1 with SCTE set and
then writing to SCDR. Reset sets the SCTE bit.
Freescale Semiconductor, Inc.
Serial Communications Interface Module (SCI)
For More Information On This Product,
1 = SCDR data transferred to transmit shift register
0 = SCDR data not transferred to transmit shift register
Transfer of SCDR data to transmit shift register complete
Transmission complete
Transfer of receive shift register data to SCDR complete
Receiver input idle
Receiver overrun
Noisy data
Framing error
Parity error
$0016
SCTE
Bit 7
1
Figure 15-12. SCI Status Register 1 (SCS1)
Go to: www.freescale.com
= Unimplemented
TC
6
1
SCRF
5
0
Serial Communications Interface Module (SCI)
IDLE
4
0
OR
3
0
NF
2
0
FE
1
0
Technical Data
I/O Registers
Bit 0
PE
0
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