參數(shù)資料
型號(hào)： L6460TR
廠商： STMICROELECTRONICS
元件分類(lèi)： 運(yùn)動(dòng)控制電子
英文描述： STEPPER MOTOR CONTROLLER, PQFP64
封裝： 10 X 10 MM, 1 MM HEIGHT, ROHS COMPLIANT, TQFP-64
文件頁(yè)數(shù)： 67/139頁(yè)
文件大?。?/td> 3837K
代理商： L6460TR
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L6460
Supervisory system
Doc ID 17713 Rev 1
33/139
state. This stretch time can be selected by setting the ID[1:0] bits in the SampleID register
according to following table.
When nRST_int becomes active (logic level = “0”) it sets in their reset state some of the
functions inside L6460. The main functions that will be reset by nRST_int signal are the
following:
–
Serial interface will be reset and will not accept any other command.
–
The bridges 1 and 2 will place their outputs in high impedance and PWM and
direction signals will be reset.
–
AD converter will be powered off.
–
GPIOs will be powered off.
–
Current DAC will be powered off.
–
Operational amplifiers will be powered off.
–
Watchdog count will be reset (while Watchdog flags won’t be reset).
–
Interrupt controller will be powered off.
–
Digital comparator will be powered off.
Additionally the system regulators will be powered off but only if the voltage that caused the
nRST_int event is checked before the system regulator in the power up sequence. This
means that:
–
all system regulators will be powered off if nRST_int is caused by VSupply,
VSupplyInt, VPump (and also if V3v3 causes a POR);
–
no one of the system regulators will be powered off if nRST_int is caused by
VGPIO_SPI;
–
only the system regulators that follows the system regulator that caused the
nRST_int in power up sequence will be powered off.
Table 6.
Stretch time selection
ID[1]
ID[0]
Selected stretch time
Note
Typ
0
16ms
Default state
01
32ms
10
48ms
11
64ms
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