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参数资料
| 型号： | AMIS30621C6217G |
| 厂商： | ON Semiconductor |
| 文件页数： | 38/59页 |
| 文件大小： | 0K |
| 描述： | IC MOTOR STEPPER DVR/CTLR 20SOIC |
| 标准包装： | 38 |
| 应用： | PWM 电机驱动器，步进电机驱动器 |
| 评估套件： | 可供 |
| 输出数： | 1 |
| 电流 - 输出： | 800mA |
| 电压 - 负载： | 6.5 V ~ 29 V |
| 电源电压： | 6.5 V ~ 29 V |
| 工作温度： | -40°C ~ 165°C |
| 安装类型： | 表面贴装 |
| 封装/外壳： | 20-SOIC（0.295"，7.50mm 宽） |
| 供应商设备封装： | 20-SOIC |
| 包装： | 管件 |
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AMIS ? 30621
Table 25. PREPARING FRAME #7
Structure
Byte
0
Content
Identifier
Bit 7
*
Bit 6
*
Bit 5
0
Bit 4
ID4
Bit 3
ID3
Bit 2
ID2
Bit 1
ID1
Bit 0
ID0
1
2
3
Data 1
Data 2
Checksum
1
1
CMD[6:0]
AD[6:0]
Checksum over data
Where :
(*) According to parity computation
Type #8 : eight data bytes preparing frame with 0x3C
identifier.
Table 26. PREPARING FRAME #8
Structure
Byte
0
Content
Identifier
Bit 7
0
Bit 6
0
Bit 5
1
Bit 4
1
Bit 3
1
Bit 2
1
Bit 1
0
Bit 0
0
1
Data 1
AppCMD = ...
2
3
4
5
6
7
8
9
Data 2
Data 3
Data 4
Data 5
Data 6
Data 7
Data 8
Checksum
1
1
CMD[6:0]
AD[6:0]
Data4[7:0] FF
Data5[7:0] FF
Data6[7:0] FF
Data7[7:0] FF
Data8[7:0] FF
Checksum over data
Where :
AppCMD: If = ‘0x80’ this indicates that Data 2 contains an application command
CMD[6:0]: Application Command “byte”
AD[6:0]: Slave node physical address
Datan[7:0]: Data transmitted
Dynamic Assignment of Identifiers
The identifier field in the LIN datagram denotes the
content of the message. Six identifier bits and two parity bits
are used to represent the content. The identifiers 0x3C and
0x3F are reserved for command frames and extended
frames. Slave nodes need to be very flexible to adapt itself
to a given LIN network in order to avoid conflicts with slave
nodes from different manufacturers. Dynamic assignment
of the identifiers will fulfill this requirement by writing
identifiers into the circuits RAM. ROM pointers are linking
commands and dynamic identifiers together. A writing
frame with identifier 0x3C issued by the LIN master will
write dynamic identifiers into the RAM. One writing frame
is able to assign 4 identifiers; therefore 3 frames are needed
to assign all identifiers. Each ROM pointer <ROMp_x
[3:0]> place the corresponding dynamic identifier
<Dyn_ID_x [5:0]> at the correct place in the RAM (see
Table below: LIN – Dynamic Identifiers Writing Frame).
When setting <Broad> to zero broadcasting is active and
each slave on the LIN bus will store the same dynamic
identifiers, otherwise only the slave with the corresponding
slave address is programmed.
http://onsemi.com
38
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