MC68HC908JL8 MOTOROLA [Motorola, Inc], MC68HC908JL8 Datasheet - Page 125

• Manufacturer Part Number: MC68HC908JL8
• Description: Motorola reserves the right to make changes without further notice to any products herein
• Manufacturer: MOTOROLA [Motorola, Inc]

9.4.5 Break Signal
9.4.6 Commands
MC68HC908JL8
MOTOROLA
—
Rev. 2.0
A start bit followed by nine low bits is a break signal. (See Figure 9-6.)
When the monitor receives a break signal, it drives the PTB0 pin high for
the duration of two bits before echoing the break signal.
The monitor ROM uses the following commands:
•
•
•
•
•
•
Freescale Semiconductor, Inc.
For More Information On This Product,
READ (read memory)
WRITE (write memory)
IREAD (indexed read)
IWRITE (indexed write)
READSP (read stack pointer)
RUN (run user program)
0
1
Go to: www.freescale.com
2
MISSING STOP BIT
Monitor ROM (MON)
3
Figure 9-6. Break Transaction
4
5
6
7
TWO-STOP-BIT DELAY BEFORE ZERO ECHO
0
1
2
Functional Description
3
Monitor ROM (MON)
4
Technical Data
5
6
7
125