AMIS30623C623BRG ON Semiconductor, AMIS30623C623BRG Datasheet - Page 38

• Manufacturer Part Number: AMIS30623C623BRG
• Description: IC MOTOR DRIVER/CTLR 32-QFP
• Manufacturer: ON Semiconductor

Specifications of AMIS30623C623BRG

• Applications: Stepper Motor Driver
• Number Of Outputs: 1
• Current - Output: 800mA
• Voltage - Supply: 6.5 V ~ 29 V
• Operating Temperature: -40°C ~ 165°C
• Mounting Type: Surface Mount
• Package / Case: 32-VSQFP
• Mounting Style: SMD/SMT
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Voltage - Load: -
• Lead Free Status / Rohs Status: Lead free / RoHS Compliant

NOTE:
Reading Frames
That is: the master initiates the frame (synchronization field
+ identifier field), and one slave sends back the data field
together with the check field. Hence, two types of identifiers
can be used for a reading frame:
•
•
Where:
ID0
Table 31. PREPARING FRAME #7
A reading frame uses an in−frame response mechanism.
(*) According to parity computation
Direct ID, which points at a particular slave node,
indicating at the same time which kind of information is
awaited from this slave node, thus triggering a specific
command. This ID provides the fastest access to a read
command but is forbidden for any other action.
Indirect ID, which only specifies a reading command,
the physical address of the slave node that must answer
having been passed in a previous writing frame, called
a preparing frame. Indirect ID gives more flexibility
than a direct one, but provides a slower access to a read
command.
ID5
Byte
0
0
1
1
Type #2: two, four or eight data bytes writing frame
Type #3: two data bytes writing frame with an
Type #4: eight data bytes writing frame with 0x3C
0
1
2
3
ID1
<ID4> and <ID5> indicate the number of data bytes.
with an identifier dynamically assigned to an
application command, regardless of the
physical address of the circuit.
identifier dynamically assigned to a particular
slave node together with an application
command. This type of frame requires that
there are as many dynamically assigned
identifiers as there are AMIS−30623 circuits
using this command connected to the LIN bus.
identifier.
ID2
ID4
0
1
0
1
Checksum
Content
Identifier
Data 1
Data 2
ID3
ID
ID4
Ndata (number of data fields)
ID5
Bit 7
ID6
1
1
*
ID7
2
2
4
8
Bit 6
*
command
Data1
http://onsemi.com
Bit 5
0
38
following:
Preparing Frames
a particular slave node that it will have to answer in the next
frame (being a reading frame). A preparing frame is needed
when a reading frame does not use a dynamically assigned
direct ID. Preparing and reading frames must be
consecutive. A preparing frame will contain the physical
address of the LIN slave node that must answer in the
reading frame and will also contain a command indicating
which kind of information is awaited from the slave.
of type #7 or type #8 described below.
Checksum over data
The reading frames, used with the AMIS−30623, are the
A preparing frame is a frame from the master that warns
The preparing frames used with the AMIS−30623 can be
Bit 4
ID4
Type #5: two, four or eight Data bytes reading frame
Type #6: eight Data bytes reading frame with 0x3D
Type #7: two data bytes writing frame with
1. A reading frame with indirect ID must always be
2. A reading frame will always return the physical
Physical address
Structure
consecutive to a preparing frame. It will otherwise
not be taken into account.
address of the answering slave node in order to
ensure robustness in the communication.
with a direct identifier dynamically assigned to
a particular slave node together with an
application command. A preparing frame is not
needed.
identifier. This is intrinsically an indirect type,
needing therefore a preparation frame. It has the
advantage to use a reserved identifier. (Note:
because of the parity calculation done by the
master, the identifier becomes 0x7D as physical
data over the bus).
dynamically assigned identifier. The identifier
of the preparing frame has to be assigned to
ROM pointer 1000, see Table 34.
CMD[6:0]
AD[6:0]
Bit 3
ID3
Data2
Bit 2
ID2
Broad
Bit 1
ID1
Parameters...
Data3...
Bit 0
ID0