mc68hc908jb16 Freescale Semiconductor, Inc, mc68hc908jb16 Datasheet - Page 238

• Manufacturer Part Number: mc68hc908jb16
• Description: M68hc08 Microcontrollers Microcontroller
• Manufacturer: Freescale Semiconductor, Inc

Serial Communications Interface
12.9.4 SCI Status Register 1
Technical Data
238
Address:
SCI status register 1 (SCS1) contains flags to signal these conditions:
SCTE — SCI Transmitter Empty Bit
Reset:
Read:
Write:
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•
•
•
•
•
•
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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.
Serial Communications Interface Module (SCI)
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
$005D
SCTE
Bit 7
1
Figure 12-12. SCI Status Register 1 (SCS1)
= Unimplemented
TC
6
1
SCRF
5
0
IDLE
4
0
OR
3
0
MC68HC908JB16
NF
Freescale Semiconductor
2
0
FE
1
0
—
Rev. 1.1
Bit 0
PE
0