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參數(shù)資料
| 型號： | L9942XPTR |
| 廠商： | STMICROELECTRONICS |
| 元件分類： | 運動控制電子 |
| 英文描述： | STEPPER MOTOR CONTROLLER, 2.5 A, PDSO24 |
| 封裝： | LEAD FREE, POWER, SSO-24 |
| 文件頁數(shù)： | 18/40頁 |
| 文件大小： | 664K |
| 代理商： | L9942XPTR |
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L9942
SPI - Control and Status Registers
5.4
Signal and Profile Register 3
The meaning of the different bits is as follows:
5.5
Counter and Profile (Register 4 and Register 5)
The meaning of the different bits is as follows:
Table 16.
Signal and Profile Register 3
Bit
Current Profile 3
PWM
Counter
PWM
Current Profile 2
12
11
10
9
8
7
6
5
4
3
2
1
0
Access
r w
Reset
0
Name
I4
I3
I2
I1
I0
D1
(T5)
D0
(T4)
NPW
M(T3)
I4
I3
I2
I1
I0
I4 I3 I2 I1 I0
These bits are loaded in register1 DAC Phase A or B if needed.
See also parameter Table 11
DT1 DT0
These bits are for threshold value in counter of active time
during signal PWM.
NPWM
This bit switches internal PWM signal of bridge A to pin PWM if
it is set to 0, otherwise pin is in high resistance status.
(T5 T4 T3)
These bits are used in test mode only.
Table 17.
Counter and Profile (Register 4 and Register 5)
Bit
Current Profile 5 (7)
PWM Counter
Current Profile 4 (6)
12
11
10
987
6
5
4
3
21
0
Access
r w
Reset
0
000
0
00
0
Name
I4
I3
I2
I1
I0
D4(7)
D3(6)
D2(5)
I4
I3
I2
I1
I0
I4 I3 I2 I1 I0
These bits are loadedneeded. in register1 DAC Phase A
or B if needed.
See also parameter Table 11
D4 D3 D2 (register4) These bits are for threshold value in counter of active time
during signal PWM. LSB and next value are set in
register3 by D0 and D1.
D7 D6 D5 (register5)
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