XC68HC08KH12 Motorola, XC68HC08KH12 Datasheet - Page 155

• Manufacturer Part Number: XC68HC08KH12
• Description: MICROCONTROLLER
• Manufacturer: Motorola

10.4.4 Break Signal
10.4.5 Commands
MC68HC(7)08KH12
MOTOROLA
—
Rev. 1.0
A start bit followed by nine low bits is a break signal.
When the monitor receives a break signal, it drives the PTA0 pin high for
the duration of two bits before echoing the break signal.
The monitor ROM uses the following commands:
•
•
•
•
•
•
READ (read memory)
WRITE (write memory)
IREAD (indexed read)
IWRITE (indexed write)
READSP (read stack pointer)
RUN (run user program)
0
1
2
Monitor ROM (MON)
3
MISSING STOP BIT
Figure 10-5. Break Transaction
4
5
6
7
TWO-STOP-BIT DELAY BEFORE ZERO ECHO
0
1
2
(See Figure 10-5.)
Functional Description
3
Monitor ROM (MON)
Advance Information
4
5
6
7
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