MC68HC708MP16CFU

Manufacturer Part NumberMC68HC708MP16CFU
ManufacturerFreescale Semiconductor, Inc
MC68HC708MP16CFU datasheet
 
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Page 195/398:

Data Format

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Table 10-2
monitor mode.
Modes
User
Monitor
1. If the high voltage (V
10.4.2 Data Format
Communication with the monitor ROM is in standard non-return-to-zero
(NRZ) mark/space data format. (See
$A5
BREAK
The data transmit and receive rate can be anywhere from 4800 baud to
28.8 kbaud. Transmit and receive baud rates must be identical.
MC68HC708MP16
Rev. 3.1
Freescale Semiconductor
is a summary of the differences between user mode and
Table 10-2. Mode Differences
Reset
COP
Vector
High
Enabled
$FFFE
(1)
Disabled
$FEFE
+ V
) is removed from the IRQ1/V
DD
HI
asserts its COP enable output. The COP is a mask option enabled or disabled by the
COPD bit in the mask option register.
START
BIT 0
BIT 1
BIT 2
BIT 3
BIT
Figure 10-2. Monitor Data Format
START
BIT 0
BIT 1
BIT 2
BIT 3
BIT
START
BIT 0
BIT 1
BIT 2
BIT 3
BIT
Figure 10-3. Sample Monitor Waveforms
Monitor ROM (MON)
Monitor ROM (MON)
Functions
Reset
Break
Break
SWI
Vector
Vector
Vector
Vector
Low
High
Low
High
$FFFF
$FFFC
$FFFD
$FFFC
$FEFF
$FEFC
$FEFD
$FEFC
pin or the RST pin, the SIM
PP
Figure 10-2
and
Figure
STOP
BIT 4
BIT 5
BIT 6
BIT 7
BIT
STOP
BIT 4
BIT 5
BIT 6
BIT 7
BIT
STOP
BIT 4
BIT 5
BIT 6
BIT 7
BIT
SWI
Vector
Low
$FFFD
$FEFD
10-3.)
NEXT
START
BIT
NEXT
START
BIT
NEXT
START
BIT
Technical Data
195