L6269 데이터 시트보기 (PDF) - STMicroelectronics
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L6269 Datasheet PDF : 17 Pages
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INTERNAL REGISTER DEFINITION
L6269
Reg:
Name:
Type:
Address:
9
System Control Register
Write only
9Eh
BIT
0
1
2
3
4
5
6
7
PKV_1
PKV_2
VR
LABEL
RT0 (*)
DOUBLE
VCM_EN
RT1 (*)
RETRACT
DESCRIPTION
VCM Parking Voltage
VCM Parking Voltage
1 = connects internal VR reference (2V) to level shift Opamp (for
Vcm calibration).
VCM Retract Time
1 = Spindle Internal Start-Up Align and Energization time doubled.
Enable VCM section. 1 = Enable, 0 = Disable.
VCM Retract Time
1= VCM retract
”PKV_1”
”PKV_2”
0
0
0
1
1
0
1
1
”RT0”
”RT1”
0
0
0
1
1
0
1
1
(*) When program Retract Time (RT0 and RT1), Bit 2 REG#8Eh must be always written to 0.
”PARKING VOLTAGE”
0.850V
0.650V
1.600V
1.150V
”RETRACT TIME”
320ms
640ms
160ms
320ms
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