MC68HC705C4ACB MOTOROLA [Motorola, Inc], MC68HC705C4ACB Datasheet - Page 123
MC68HC705C4ACB
Manufacturer Part Number
MC68HC705C4ACB
Description
Microcontrollers
Manufacturer
MOTOROLA [Motorola, Inc]
Datasheet
1.MC68HC705C4ACB.pdf
(210 pages)
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10.6 SCI I/O Registers
10.6.1 SCI Data Register (SCDR)
MC68HC705C4A • MC68HSC705C4A — Rev. 3.0
MOTOROLA
Address:
These I/O registers control and monitor SCI operation:
The SCI data register (SCDR) shown in
characters received and for characters transmitted.
Reset:
Read:
Write:
•
•
•
•
– Receiver Overrun (OR) — The OR bit in the SCSR indicates
– Idle Input (IDLE) — The IDLE bit in the SCSR indicates that 10
SCI data register (SCDR)
SCI control register 1 (SCCR1)
SCI control register 2 (SCCR2)
SCI status register (SCSR)
Serial Communications Interface (SCI)
$0011
Bit 7
Bit 7
that the receive shift register shifted in a new character before
the previous character was read from the SCDR.
or 11 consecutive logic 1s shifted in from the PD0/RDI pin.
Figure 10-5. SCI Data Register (SCDR)
Bit 6
6
Bit 5
5
Unaffected by reset
Bit 4
4
Serial Communications Interface (SCI)
Figure 10-5
Bit 3
3
Bit 2
2
is the buffer for
SCI I/O Registers
Bit 1
1
Technical Data
Bit 0
Bit 0
123
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