MC3PHAC Motorola, MC3PHAC Datasheet - Page 27

• Manufacturer Part Number: MC3PHAC
• Description: 3-Phase AC Motor Controller
• Manufacturer: Motorola

PC Master Software Operation with the MC3PHAC
MOTOROLA
When power is first applied to the MC3PHAC, or if a logic low level is applied
to the RESET pin, the MC3PHAC enters PC master software mode if the
VBOOST_MODE pin is low during the initialization phase. The MC3PHAC
recognizes a subset of the PC master software command set, which is listed in
Table
With the READVARx commands, the addresses are checked for validity, and
the command is executed only if the address is within proper limits. In general,
a read command with an address value below $0060 or above $EE03 will not
execute properly, but instead will return an invalid operation response. An
exception to this rule is that PC master software allows reading locations
$0001, $0036 and $FE01, which are PORTB data register, Dead Time register
and SIM Reset Status registers respectively. The addresses for the
WRITEVARx commands are checked for validity, and the data field is also
limited to a valid range for each variable. See
values and valid write addresses.
User interface variables and their associated PC master software addresses
within the MC3PHAC are listed in
GETINFOBRIEF
READVAR8
READVAR16
READVAR32
WRITEVAR8
WRITEVAR16
Freescale Semiconductor, Inc.
Command
For More Information On This Product,
5.
Table 5. Recognized PC Host Software Commands
3-Phase AC Motor Controller
Go to: www.freescale.com
MC3PHAC responds with brief summary of hardware setup
MC3PHAC reads an 8-bit variable at a specified address
MC3PHAC reads a 16-bit variable at a specified address
MC3PHAC reads a 32-bit variable at a specified address
MC3PHAC writes an 8-bit variable at a specified address
MC3PHAC writes a 16-bit variable at a specified address
and link configuration information
and responds with its value
and responds with its value
and responds with its value
Table
6.
Description
Table 6
for a list of valid data
MC3PHAC/D
Operation
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