mc68hc708mp16 Freescale Semiconductor, Inc, mc68hc708mp16 Datasheet - Page 307

• Manufacturer Part Number: mc68hc708mp16
• Description: M68hc08 Microcontrollers
• Manufacturer: Freescale Semiconductor, Inc

14.8.3 SCI Control Register 3
MC68HC708MP16
Freescale Semiconductor
—
Rev. 3.1
Address:
SCI control register 3:
R8 — Received Bit 8
T8 — Transmitted Bit 8
Reset:
Read:
Write:
•
•
•
•
When the SCI is receiving 9-bit characters, R8 is the read-only ninth
bit (bit 8) of the received character. R8 is received at the same time
that the SCDR receives the other 8 bits.
When the SCI is receiving 8-bit characters, R8 is a copy of the eighth
bit (bit 7). Reset has no effect on the R8 bit.
When the SCI is transmitting 9-bit characters, T8 is the read/write
ninth bit (bit 8) of the transmitted character. T8 is loaded into the
transmit shift register at the same time that the SCDR is loaded into
the transmit shift register. Reset has no effect on the T8 bit.
Serial Communications Interface Module (SCI)
Stores the ninth SCI data bit received and the ninth SCI data bit to
be transmitted
Enables SCI receiver full (SCRF)
Enables SCI transmitter empty (SCTE)
Enables the following interrupts:
– Receiver overrun interrupts
– Noise error interrupts
– Framing error interrupts
– Parity error interrupts
$003A
Bit 7
R8
U
Figure 14-9. SCI Control Register 3 (SCC3)
= Unimplemented
T8
U
6
5
0
0
Serial Communications Interface Module (SCI)
4
0
0
U = Unaffected
ORIE
3
0
NEIE
2
0
FEIE
Technical Data
1
0
Bit 0
PEIE
0
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