XC908AS60ACFU Motorola Semiconductor Products, XC908AS60ACFU Datasheet - Page 213

• Manufacturer Part Number: XC908AS60ACFU
• Description: MC68HC908AZ60A, MC68HC908AS60A Hcmos Microcontroller Unit Technical Data
• Manufacturer: Motorola Semiconductor Products

14.4.2 Data Format
MC68HC908AZ60A — Rev 2.0
MOTOROLA
BREAK
$A5
START
BIT
START
START
BIT
BIT
BIT 0
BIT 0
BIT 0
Table 14-2
monitor mode.
Communication with the monitor ROM is in standard non-return-to-zero
(NRZ) mark/space data format. (See
The data transmit and receive rate can be anywhere up to 28.8 kBaud.
Transmit and receive baud rates must be identical.
Monitor
1. If the high voltage (V
Modes
BIT 1
Figure 14-3. Sample Monitor Waveforms
User
the SIM asserts its COP enable output. The COP is enabled or disabled by the COPD bit
in the configuration register. (see
BIT 1
BIT 1
Figure 14-2. Monitor Data Format
BIT 2
Disabled
BIT 2
BIT 2
Enabled
is a summary of the differences between user mode and
COP
BIT 3
Monitor ROM (MON)
BIT 3
BIT 3
(1)
HI
) is removed from the IRQ and/or RESET pin while in monitor mode,
Table 14-2. Mode Differences
BIT 4
Vector
$FFFE
$FEFE
Reset
BIT 4
BIT 4
High
BIT 5
5.0 Volt DC Electrical Characteristics
BIT 5
BIT 5
Vector
$FEFF
$FFFF
Reset
Low
BIT 6
BIT 6
BIT 6
Functions
Figure 14-2
Vector
$FFFC
$FEFC
BIT 7
Break
High
BIT 7
BIT 7
STOP
BIT
STOP
STOP
$FEFD
Vector
$FFFD
Break
BIT
BIT
Low
and
START
NEXT
BIT
Functional Description
START
START
NEXT
NEXT
BIT
BIT
Monitor ROM (MON)
Figure
Vector
$FFFC
$FEFC
High
SWI
on page 532).
Technical Data
14-3.)
$FEFD
Vector
$FFFD
Low
SWI
213