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参数资料
| 型号： | MM908E630CVFC |
| 厂商： | FREESCALE SEMICONDUCTOR INC |
| 元件分类： | 微控制器/微处理器 |
| 英文描述： | MICROCONTROLLER, QCC44 |
| 封装： | 9 X 9 MM, 1 MM HEIGHT, 0.65 MM PITCH, ROHS COMPLIANT, QFN-44 |
| 文件页数： | 31/48页 |
| 文件大小： | 2299K |
| 代理商： | MM908E630CVFC |
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Analog Integrated Circuit Device Data
Freescale Semiconductor
37
908E630
FUNCTIONAL DEVICE OPERATION
LOGIC COMMANDS AND REGISTERS
PWMHSx - PWM input control enable.
This write-only bit enables/disables the PWMIN input pin
to control the respective High Side switch. The corresponding
High Side switch must be enabled (HSx bit).
1 = PWMIN input controls HSx output.
0 = HSx is controlled only by SPI.
HSx - HSx switch control
This write-only bit enables/disables the corresponding
High Side switch.
1 = HSx switch on.
0 = HSx switch off.
High Side Status Register - HSSR
This register returns the status of the High Side switches
and is also returned when writing to the High Side Control
Register HSCR.
High Side thermal shutdown
A thermal shutdown of the High Side drivers is indicated by
setting all HSxOP and HSxCL bits simultaneously.
HSxOP - High Side Switch Open-load Detection
This read-only bit signals that the High Side switches are
conducting current below a certain threshold indicating
possible load disconnection.
1 = HSx Open Load detected (or thermal shutdown)
0 = Normal
HSxCL - High Side Current Limitation
This read-only bit indicates that the respective High Side
switch is operating in current limitation mode.
1 = HSx in current limitation (or thermal shutdown)
0 = Normal
Low Side Control Register - LSCR
This register controls the operation of the Low Side
drivers. Writing the Low Side Control Register will also return
the Low Side Status Register LSSR.
PWMLx - PWM input control enable
This write-only bit enables/disables the PWMIN input pin
to control the respective Low Side switch. The corresponding
Low Side switch must be enabled (LSx bit).
1 = PWMIN input controls LSx.
0 = LSx is controlled only by SPI.
LSx - LSx switch control
This write-only bit enables/disables the corresponding
Low Side switch.
1 = LSx switch on.
0 = LSx switch off.
Low Side Status Register - LSSR
This register returns the status of the Low Side switches
and is also returned when writing to the Low Side Control
Register LSCR.
Low Side thermal shutdown
A thermal shutdown of the Low Side drivers is indicated by
setting all LSxOP and LSxCL bits simultaneously.
LSxOP - Low Side Switch Open-load Detection
This read-only bit signals that the Low Side switches are
conducting current below a certain threshold indicating
possible load disconnection.
1 = LSx Open Load detected (or thermal shutdown)
0 = Normal
Table 18. High Side Control Register - $6
C3
C2
C1
C0
Write
PWMHS
2
PWMHS
1
HS2
HS1
Reset
Value
00
0
Reset
Condition
POR
POR, Reset mode, ext_reset,
HSx over-temp or (VSOV &
HVSE)
Table 19. High Side Status Register - $6/$7
S3
S2
S1
S0
Read
HS2OP
HS2CL
HS1OP
HS1CL
Table 20. Low Side Control Register - $8
C3
C2
C1
C0
Write
PWMLS2 PWMLS1
LS2
LS1
Reset
Value
00
0
Reset
Condition
POR
POR, Reset mode, ext_reset,
LSx over-temp or (VSOV &
HVSE)
Table 21. Low Side Status Register - $8/$9
C3
C2
C1
C0
Read
LS2OP
LS2CL
LS1OP
LS1CL
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