MC68HC908KX2 MOTOROLA [Motorola, Inc], MC68HC908KX2 Datasheet - Page 204

• Manufacturer Part Number: MC68HC908KX2
• Description: Microcontrollers
• Manufacturer: MOTOROLA [Motorola, Inc]

Serial Communications Interface Module (SCI)
14.8.3 SCI Control Register 3
Technical Data
204
Address:
SCI control register 3 (SCC3):
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 eight 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 these interrupts:
– Receiver overrun interrupts
– Noise error interrupts
– Framing error interrupts
– Parity error interrupts
$0015
Bit 7
R8
U
Figure 14-11. SCI Control Register 3 (SCC3)
= Unimplemented
MC68HC908KX8 • MC68HC908KX2 • MC68HC08KX8 — Rev. 1.0
T8
U
6
R
5
0
R
R
4
0
= Reserved
ORIE
3
0
NEIE
2
0
U = Unaffected
FEIE
1
0
MOTOROLA
PEIE
Bit 0
0