MC68HC08AZ60ACFU MOTOROLA [Motorola, Inc], MC68HC08AZ60ACFU Datasheet - Page 243
MC68HC08AZ60ACFU
Manufacturer Part Number
MC68HC08AZ60ACFU
Description
Microcontrollers
Manufacturer
MOTOROLA [Motorola, Inc]
Datasheet
1.MC68HC08AZ60ACFU.pdf
(480 pages)
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16.9.5 SCI Status Register 2
MC68HC08AZ60A — Rev 0.0
MOTOROLA
Address:
SCI status register 2 contains flags to signal the following conditions:
BKF — Break Flag Bit
Reset:
Read:
Write:
•
•
This clearable, read-only bit is set when the SCI detects a break
character on the RxD pin. In SCS1, the FE and SCRF bits are also
set. In 9-bit character transmissions, the R8 bit in SCC3 is cleared.
BKF does not generate a CPU interrupt request. Clear BKF by
reading SCS2 with BKF set and then reading the SCDR. Once
cleared, BKF can become set again only after logic 1s again appear
on the RxD pin followed by another break character. Reset clears the
BKF bit.
1 = Break character detected
0 = No break character detected
Break character detected
Incoming data
Serial Communications Interface (SCI)
$0017
Bit 7
0
0
Figure 16-16. SCI Status Register 2 (SCS2)
= Unimplemented
6
0
0
5
0
0
4
0
0
Serial Communications Interface (SCI)
3
0
0
2
0
0
Advance Information
BKF
1
0
I/O Registers
Bit 0
RPF
0
243
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