Motorola M68EVB912B32, User Manual

Page: 42 / 122

OPERATION
68EVB912B32UM/D 3-20
DEVICE Specify Target MCU Device DEVICE
syntax:
DEVICE
DEVICE <DeviceName> [<EEStart> <EEEnd> <FStart>
<FEnd> <RAMStart> <RAMEnd> <IOBase>]
where:
<DeviceName> is the maximum of 7 ASCII characters used to select/define a target
MCU device.
<EEStart> is the on-chip EEPROM starting address; a 16-bit hexadecimal
number.
<EEEnd> is the on-chip EEPROM ending address; a 16-bit hexadecimal
number.
<FStart> is the on-chip Flash EEPROM starting address; a 16-bit
hexadecimal number.
<FEEnd> is the on-chip Flash EEPROM ending address; a 16-bit
hexadecimal number.
<RAMStart> is the on-chip RAM starting address; a 16-bit hexadecimal number.
<RAMEnd> is the on-chip RAM ending address; a 16-bit hexadecimal number.
<IOBase> is the base address of the on-chip I/O registers; a 16-bit
hexadecimal number.
Selecting the proper target MCU with the DEVICE command provides D-Bug12 the information
necessary to allow transparent alteration of the target MCU’s on-chip EEPROM using any
D-Bug12 commands that modify memory. It also provides the necessary information to allow
the programming and erasure of on-chip Flash EEPROM. In addition, it allows D-Bug12 to
initialize the stack pointer to the top of on-chip RAM when the target MCU is reset by use of the
RESET command. The DEVICE command has three separate command line formats that allows
for the display, selection and/or definition of target device parameters.
Entering "DEVICE" on the command line followed by a carriage return displays the name of the
currently selected device, the on-chip EEPROM’s starting and ending address, the on-chip Flash
EEPROM’s starting and ending address, the on-chip RAM’s starting and ending address, and the
I/O Base address. This form of the command may be used when D-Bug12 is operating in either
EVB or POD mode.
When D-Bug12 is operated in the POD mode, the DEVICE command may also be used to select
or define a new target device. Entering the DEVICE command followed only by a device name