MC68HC708MP16CFU Break Signal - Freescale Semiconductor, Inc

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MC68HC708MP16CFU

Manufacturer Part Number
MC68HC708MP16CFU
Description
Manufacturer
Freescale Semiconductor, Inc
Datasheet
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Monitor ROM (MON)
10.4.3 Echoing
10.4.4 Break Signal
Technical Data
196
As shown in
received byte back to the PTA0 pin for error checking.
Any result of a command appears after the echo of the last byte of the
command.
A start bit followed by nine low bits is a break signal. (See
When the monitor receives a break signal, it drives the PTA0 pin high for
the duration of two bits before echoing the break signal.
SENT TO
MONITOR
ECHO
0
1
READ
Figure
2
Monitor ROM (MON)
3
MISSING STOP BIT
Figure 10-5. Break Transaction
Figure 10-4. Read Transaction
4
READ
10-4, the monitor ROM immediately echoes each
5
6
ADDR. HIGH
7
ADDR. HIGH ADDR. LOW
TWO-STOP-BIT DELAY BEFORE ZERO ECHO
0
MC68HC708MP16
1
Freescale Semiconductor
2
ADDR. LOW
3
4
Figure
5
6
RESULT
DATA
Rev. 3.1
10-5.)
7

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