参数资料
型号: AS5030 AB
厂商: ams
文件页数: 21/44页
文件大小: 0K
描述: BOARD ADAPTER AS5030
标准包装: 1
传感器类型: 磁性,旋转位置
传感范围: 360°
接口: 串行
电源电压: 5V
嵌入式:
已供物品:
已用 IC / 零件: AS5030
AS5030
Datasheet - D e t a i l e d D e s c r i p t i o n
7.11 2-Wire Daisy Chain Mode
The AS5030 can also be connected in 2-wire Daisy Chain mode, requiring only two signals (Clock and Data) for any given number of daisy-
chained devices. Note that the connection of all devices except the last device is the same as for the 3-wire connection (see Figure 17) . The last
device must have pin C2 (#15) set to ‘high’ and feeds the DX signal to CS of the first device.
Again, each device should be buffered with a 100nF cap (shown only for the last device).
The total number of serial bits is: n*21, where n is the number of connected devices. Note that this configuration requires one extra clock (#1) to
initiate the generation of the CS signal for the first device. After reading the last device, the communication must be reset back to the first device
by introducing a timeout of CLK (no rising edge for >24μs)
Figure 19. 2-wire Daisy Chain Mode
+5 V
VDD
13
13
13
15
VDD
VDD
VDD
VDD
C2
Micro
Controller
11
CS
AS5030
#1
DX
11
CS
AS5030
#2
DX
11
AS5030
(last device)
CS
DX
100n
Output
I/O
10
12
CLK
DI O
10
12
CLK
DI O
10
12
CLK
DI O
VSS
C1
14
C2
15
VSS
3
C1
14
C2
15
VSS
3
C1
14
VSS
3
VSS
Figure 20. Timing Diagram in 2-wire Daisy Chain Mode
CLK
1
2
3
4
5
6
7
8
21
22
23
24
25
26
27
28
29
42
43
44
45
CS (#1)
CS (#2)
CS (#3)
DIO
CMD 4
CMD 3
CMD 2
CMD 1
CMD 0
D 15
D 14
D0
CMD 4
CMD 3
CMD 2
CMD 1
CMD 0
D 15
D 14
D0
CMD 4
CMD 3
CMD 2
www.ams.com/AS5030
AS 5030 # 1
Revision 2.4
AS5030 # 2
AS5030 # 3
21 - 44
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